{ "model": { "rank": 4767, "code": "thing-q202837", "model_id": "vr.tr.cardiac-arrest", "name": "cardiac arrest", "purpose": "Enable an AI agent to recognise suspected cardiac arrest, represent an episode and its uncertainty, and support timely escalation and authorised clinical decisions.", "family": "Thing Registry", "category": "Information and virtual systems", "status": "research-draft", "kind": "thing", "plane": "INF", "domain": "INF.KNW", "industry": "", "version": "", "url": "/models/thing/q202837/", "tier": 2, "score": 72, "payload": { "layer": "wikidata", "aliases": [ "pulseless electrical activity", "Commotio cordis", "out-of-hospital cardiac arrest", "rearrest", "asystole", "traumatic cardiac arrest" ], "aliasCount": 6, "merged": 6, "knownIn": 72, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q202837", "url": "https://www.wikidata.org/wiki/Q202837", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-09T20:57:56Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 24.9, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a087f5-719a-7fb1-b58a-761375874a4b\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: cardiac arrest\nSense to describe: (none recorded)\nDomain code: XCT.STA\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 005: 1001 ", "usd": 0, "recall": true }, "codex": { "seconds": 72.2, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a087f5-71bd-7b81-abb5-09330f592c54\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: cardiac arrest\nRegistry id: vr.tr.cardiac-arrest\nPlane / domain: XCT / XCT.STA\nRegistry definition: (none recorded)\nNames folded into this entry: (no" } } }, "metaModel": { "id": "THING-Q202837", "registryId": "vr.tr.cardiac-arrest", "name": "cardiac arrest", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.STA" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q202837/", "model": { "registry_id": "vr.tr.cardiac-arrest", "name": "cardiac arrest", "purpose": "Enable an AI agent to recognise suspected cardiac arrest, represent an episode and its uncertainty, and support timely escalation and authorised clinical decisions.", "definition": "Cardiac arrest is the cessation of effective cardiac mechanical activity, resulting in loss of effective blood circulation and clinically recognised by unresponsiveness, absent normal breathing and absence of a definite pulse.", "scope_statement": "This model owns vr.tr.cardiac-arrest in XCT / XCT.STA as the clinical state of absent effective cardiac circulation and its episode-level course, including recognition, rhythm, suspected causes, resuscitation status and immediate outcomes.", "in_scope": [ "Evidence supporting suspected or clinically established cardiac arrest", "Arrest onset, recognition, circulation states and recurrent episodes", "Arrest rhythms and changes relevant to response", "Suspected causes, precipitating circumstances and supporting evidence", "Resuscitation actions, applicable authority and immediate outcomes" ], "out_of_scope": [ "Myocardial infarction, heart failure and other underlying diseases as independently modelled conditions", "Respiratory arrest with effective circulation preserved", "Detailed CPR procedures, drug regimens and resuscitation-device specifications", "Longitudinal management of post-cardiac-arrest syndrome and rehabilitation", "Independent determination of death and organ-donation processes" ], "distinguishing_features": [ "Cardiac arrest concerns absent effective cardiac circulation; myocardial infarction concerns myocardial injury from ischaemia and may occur with circulation preserved.", "An organised electrical rhythm does not establish effective circulation: pulseless electrical activity remains an arrest rhythm.", "Unresponsiveness with absent or abnormal breathing, including gasping, supports emergency recognition; record whether this is a lay recognition or a professional assessment. [AHA adult basic life support](https://cpr.heart.org/en/resuscitation-science/cpr-and-ecc-guidelines/adult-basic-life-support)", "Respiratory arrest alone retains circulation, whereas cardiac arrest requires assessment of circulatory failure.", "Cardiac arrest is potentially reversible; neither its occurrence nor ongoing CPR alone establishes irreversible death." ], "characteristics": [ { "name": "Recognition status", "kind": "state", "unit_or_values": "suspected | clinically established | subsequently excluded | indeterminate", "why_it_matters": "Separates the threshold for emergency response from later diagnostic adjudication." }, { "name": "Responsiveness and breathing", "kind": "category", "unit_or_values": "Responsiveness: responsive | unresponsive | unknown; breathing: normal | absent | agonal or abnormal | assisted | unknown", "why_it_matters": "Preserves the observations used to recognise arrest without treating assisted ventilation as spontaneous breathing." }, { "name": "Circulatory evidence", "kind": "category", "unit_or_values": "Pulse, arterial waveform or other clinical evidence; present | absent | uncertain | not assessed, with assessor and time", "why_it_matters": "Documents the basis for judging effective circulation and its return." }, { "name": "Arrest rhythm", "kind": "category", "unit_or_values": "ventricular fibrillation | pulseless ventricular tachycardia | pulseless electrical activity | asystole | other | unknown", "why_it_matters": "Supports rhythm-specific response while distinguishing electrical activity from perfusion." }, { "name": "Episode timing", "kind": "measurement", "unit_or_values": "Timestamped events; elapsed seconds or minutes; observed, estimated or unknown", "why_it_matters": "Separates collapse, recognition, first CPR, first shock and return of circulation." }, { "name": "Witness and setting", "kind": "category", "unit_or_values": "Witnessed | unwitnessed | unknown; monitored status; out-of-hospital | in-hospital | other setting", "why_it_matters": "Explains the reliability of onset estimates and available response resources." }, { "name": "Circulation phase", "kind": "state", "unit_or_values": "arrest without support | CPR-supported circulation | extracorporeal support | spontaneous circulation restored | recurrent arrest | unknown", "why_it_matters": "Prevents mechanically supported flow from being recorded as spontaneous recovery." }, { "name": "Suspected aetiology", "kind": "relation", "unit_or_values": "Links to candidate causes with evidence, confidence and assessment time", "why_it_matters": "Allows competing explanations and cause-directed evaluation." }, { "name": "Applicable resuscitation pathway", "kind": "relation", "unit_or_values": "Protocol identifier and version, patient group, jurisdiction and responsible team", "why_it_matters": "Avoids applying one adult pathway to every age group or special circumstance." }, { "name": "Immediate outcome", "kind": "state", "unit_or_values": "ongoing resuscitation | transient return of spontaneous circulation | sustained return under a stated definition | supported circulation | resuscitation ended without return | unknown", "why_it_matters": "Keeps immediate episode outcomes distinct from survival and neurological recovery." } ], "affordances": [ "Flag observations consistent with suspected arrest and support emergency-response activation through the applicable workflow.", "Assemble a timestamped arrest record from witness reports, monitor data and clinical observations.", "Expose missing or contradictory evidence without delaying the emergency response to complete documentation.", "Surface the applicable resuscitation pathway using rhythm, patient group and special circumstances.", "Track response to interventions and prepare a handover after return of circulation or transfer.", "Identify decisions requiring accountable clinicians, including withholding or ending resuscitation." ] }, "sources": [], "structure": { "bundles": [ { "id": "recognition-and-boundaries", "name": "Recognition and boundaries", "description": "Represent why an episode is considered cardiac arrest and distinguish it from neighbouring conditions.", "rationale": "Emergency recognition must support action despite incomplete evidence while preserving diagnostic uncertainty.", "layers": [ { "id": "observable-arrest-signs", "name": "Observable arrest signs", "description": "Capture the initial observations and who made them.", "findings": [ { "id": "recognition-evidence", "name": "Recognition evidence", "description": "Record responsiveness, breathing and circulatory assessment separately, including uncertainty and observer role; gasping can mislead recognition. [AHA adult basic life support](https://cpr.heart.org/en/resuscitation-science/cpr-and-ecc-guidelines/adult-basic-life-support)", "questions": [ { "text": "What responsiveness, breathing and circulatory observations supported suspected arrest, and when were they obtained?", "kind": "measurement", "id": "recognition-evidence-q01" }, { "text": "Who made each observation, using which assessment method or device?", "kind": "provenance", "id": "recognition-evidence-q02" } ] } ] }, { "id": "clinical-state-boundaries", "name": "Clinical state boundaries", "description": "Separate cardiac arrest from conditions with overlapping presentations.", "findings": [ { "id": "effective-circulation-boundary", "name": "Effective circulation boundary", "description": "Model the absence of effective cardiac circulation rather than unconsciousness, absent breathing or an ECG appearance alone.", "questions": [ { "text": "What evidence distinguishes this episode from syncope, seizure or respiratory arrest with circulation preserved?", "kind": "boundary", "id": "effective-circulation-boundary-q01" }, { "text": "Was the initial arrest classification retained, revised or left indeterminate after clinical assessment?", "kind": "definition", "id": "effective-circulation-boundary-q02" } ] } ] } ] }, { "id": "episode-time-and-circulation", "name": "Episode time and circulation", "description": "Represent the sequence from collapse through resuscitation and changes in circulation.", "rationale": "Arrest duration and state transitions cannot be inferred reliably from a single diagnosis timestamp.", "layers": [ { "id": "onset-and-response-intervals", "name": "Onset and response intervals", "description": "Separate observed events from reconstructed intervals.", "findings": [ { "id": "timing-with-uncertainty", "name": "Timing with uncertainty", "description": "Record collapse, recognition and intervention times with their sources; do not substitute discovery time for an unknown onset.", "questions": [ { "text": "Which times are observed, estimated or unknown, and do the recording clocks agree?", "kind": "provenance", "id": "timing-with-uncertainty-q01" }, { "text": "What intervals without CPR or with CPR can be supported, and what uncertainty or interruptions affect them?", "kind": "measurement", "id": "timing-with-uncertainty-q02" } ] } ] }, { "id": "circulation-transitions", "name": "Circulation transitions", "description": "Track absent, supported and restored circulation across the episode.", "findings": [ { "id": "return-and-recurrence", "name": "Return and recurrence", "description": "Represent return of spontaneous circulation, extracorporeal support and recurrent arrest as distinct events, each supported by clinical evidence.", "questions": [ { "text": "What evidence and timestamp establish each return or subsequent loss of spontaneous circulation?", "kind": "measurement", "id": "return-and-recurrence-q01" }, { "text": "Under the selected episode definition, does a recurrence continue this episode or start a linked episode?", "kind": "boundary", "id": "return-and-recurrence-q02" } ] } ] } ] }, { "id": "rhythm-and-cause", "name": "Rhythm and cause", "description": "Connect electrical findings and candidate causes to the evolving arrest state.", "rationale": "Rhythm guides immediate response but does not uniquely identify the cause.", "layers": [ { "id": "rhythm-assessment", "name": "Rhythm assessment", "description": "Preserve time-specific rhythm classifications and their evidential basis.", "findings": [ { "id": "shockability-and-perfusion", "name": "Shockability and perfusion", "description": "Ventricular fibrillation and pulseless ventricular tachycardia occupy the shockable branch; pulseless electrical activity and asystole occupy the nonshockable branch. [AHA adult advanced life support](https://cpr.heart.org/en/resuscitation-science/cpr-and-ecc-guidelines/adult-advanced-life-support)", "questions": [ { "text": "What was the first recorded rhythm, and how did later assessed rhythms differ?", "kind": "measurement", "id": "shockability-and-perfusion-q01" }, { "text": "Was classification based on a reviewed tracing, an AED analysis or another assessment, and was artefact considered?", "kind": "provenance", "id": "shockability-and-perfusion-q02" } ] } ] }, { "id": "aetiology-and-special-circumstances", "name": "Aetiology and special circumstances", "description": "Maintain cause hypotheses and factors that change the applicable clinical pathway.", "findings": [ { "id": "cause-evidence-and-modifiers", "name": "Cause evidence and modifiers", "description": "Represent suspected causes independently of rhythm and flag circumstances such as drowning, hypothermia, poisoning or pregnancy that may require tailored management. [AHA special circumstances](https://cpr.heart.org/en/resuscitation-science/cpr-and-ecc-guidelines/adult-and-pediatric-special-circumstances-of-resuscitation)", "questions": [ { "text": "Which candidate causes are supported or contradicted by the history, examination and investigations?", "kind": "provenance", "id": "cause-evidence-and-modifiers-q01" }, { "text": "Which patient or environmental circumstances require a different resuscitation pathway?", "kind": "action", "id": "cause-evidence-and-modifiers-q02" } ] } ] } ] }, { "id": "resuscitation-response-and-authority", "name": "Resuscitation response and authority", "description": "Record the response delivered and the authority governing major treatment decisions.", "rationale": "The model must distinguish observed care, recommended pathways and decisions entrusted to responsible clinicians.", "layers": [ { "id": "interventions-and-response", "name": "Interventions and response", "description": "Link resuscitation interventions to timing and subsequent observations.", "findings": [ { "id": "resuscitation-delivery", "name": "Resuscitation delivery", "description": "Capture CPR, rhythm analyses, shocks, ventilation and advanced interventions as time-linked events, including interruptions and measured response.", "questions": [ { "text": "Which interventions were delivered, by whom and when, and which significant interruptions occurred?", "kind": "provenance", "id": "resuscitation-delivery-q01" }, { "text": "What changes in rhythm or circulation followed each intervention without assuming that temporal association proves causation?", "kind": "measurement", "id": "resuscitation-delivery-q02" } ] } ] }, { "id": "treatment-limits-and-accountability", "name": "Treatment limits and accountability", "description": "Represent the applicable protocol and documented decisions to start, continue, withhold or end resuscitation.", "findings": [ { "id": "decision-authority", "name": "Decision authority", "description": "Record clinician decisions, cited protocols and verified treatment-limitation documents separately from arrest physiology; the model does not infer permission to stop from duration alone.", "questions": [ { "text": "Which protocol and any verified treatment-limitation document apply to this patient and setting?", "kind": "provenance", "id": "decision-authority-q01" }, { "text": "Who authorised withholding or ending resuscitation, and what documented assessment supported that decision?", "kind": "action", "id": "decision-authority-q02" } ] } ] } ] }, { "id": "outcomes-and-care-transition", "name": "Outcomes and care transition", "description": "Represent the episode outcome and transfer responsibility to subsequent care.", "rationale": "Return of circulation is an intermediate outcome and does not establish survival or neurological recovery.", "layers": [ { "id": "immediate-outcome-evidence", "name": "Immediate outcome evidence", "description": "Separate circulation outcomes from later survival endpoints.", "findings": [ { "id": "endpoint-specific-outcomes", "name": "Endpoint-specific outcomes", "description": "Record return of circulation, status at transfer and later linked survival assessments with explicit times and definitions; retain unknown outcomes.", "questions": [ { "text": "What outcome was established at the end of observation, and at which time?", "kind": "measurement", "id": "endpoint-specific-outcomes-q01" }, { "text": "Which operational definition distinguishes transient from sustained return of spontaneous circulation?", "kind": "definition", "id": "endpoint-specific-outcomes-q02" } ] } ] }, { "id": "post-arrest-handover", "name": "Post-arrest handover", "description": "Transfer the information needed for evaluation and care after circulation returns.", "findings": [ { "id": "ongoing-risk-and-handover", "name": "Ongoing risk and handover", "description": "Link restored circulation to further assessment of underlying cause, physiological instability and complications; subsequent neurological assessment belongs to post-arrest care. [AHA post-cardiac-arrest care](https://cpr.heart.org/en/resuscitation-science/cpr-and-ecc-guidelines/post-cardiac-arrest-care)", "questions": [ { "text": "Which unresolved causes, recurrent-arrest risks and current support requirements must accompany the handover?", "kind": "action", "id": "ongoing-risk-and-handover-q01" }, { "text": "Which receiving team and linked care record assume responsibility after the arrest episode?", "kind": "provenance", "id": "ongoing-risk-and-handover-q02" } ] } ] } ] }, { "id": "evidence-and-external-alignment", "name": "Evidence and external alignment", "description": "What the world already says about this thing, gathered so the model can be checked against it.", "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.", "layers": [ { "id": "reported-evidence", "name": "Reported evidence", "description": "Findings from the breadth pass, kept separate from the structural claims.", "findings": [ { "id": "evidence-confidence-notes", "name": "Check these first", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "This describes the clinical condition, despite its placement in an abstract-concept batch; all content is recalled rather than source-verified.", "Check current guideline editions and jurisdiction-specific coding instructions before operational use.", "Arrest rhythm can change during an episode; initial rhythm, location, witnessed status and cause are separate classification dimensions." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of cardiac arrest this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-kinds", "name": "Kinds and varieties", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Ventricular fibrillation arrest", "Pulseless ventricular tachycardia arrest", "Pulseless electrical activity arrest", "Asystolic arrest" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of cardiac arrest this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-identifiers", "name": "Identifiers and schemes", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "scheme": "ICD-10", "value_or_pattern": "I46", "note": "Cardiac arrest category; subcodes and coding instructions depend on the national modification and circumstances." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of cardiac arrest this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-standards-and-regulation", "name": "Standards and regulation", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations, issued by the International Liaison Committee on Resuscitation.", "Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care, issued by the American Heart Association.", "Resuscitation Guidelines, issued by the European Resuscitation Council.", "Utstein-style reporting templates for cardiac arrest and resuscitation, developed through international resuscitation council collaboration." ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of cardiac arrest this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-real-world-use", "name": "Real-world use", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Recognition and classification of a medical emergency requiring resuscitation.", "Organisation of emergency dispatch, bystander response and automated external defibrillator programmes.", "Hospital surveillance and improvement of resuscitation systems.", "Cardiac arrest registries and comparisons of outcomes across emergency care systems.", "Investigation of underlying cardiac and noncardiac causes." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of cardiac arrest this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-measurements", "name": "Typical measurements", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "quantity": "Time from collapse to initiation of cardiopulmonary resuscitation", "typical_range": "Variable; collapse time may be unknown in unwitnessed arrests.", "unit": "minutes" }, { "quantity": "Time from collapse to first defibrillation", "typical_range": "Variable; applicable when a shockable rhythm is present.", "unit": "minutes" }, { "quantity": "Survival to hospital discharge", "typical_range": "Varies substantially with setting, cause, initial rhythm and case definition.", "unit": "percent of a defined cardiac arrest cohort" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of cardiac arrest this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-failure-modes-and-hazards", "name": "Failure modes and hazards", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Rapid hypoxic-ischaemic brain injury and death if circulation is not restored.", "Delayed recognition because agonal gasps are mistaken for normal breathing.", "Confusion between electrical activity on a monitor and effective mechanical circulation.", "Recurrent arrest after return of spontaneous circulation.", "Post-cardiac arrest syndrome, including brain injury, myocardial dysfunction and systemic ischaemia-reperfusion injury." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of cardiac arrest this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-regional-variation", "name": "Regional variation", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Resuscitation guidance is adapted by regional and national bodies from international evidence reviews.", "Emergency response systems, public defibrillator access and registry coverage vary across jurisdictions.", "Rules governing resuscitation decisions and termination of resuscitation vary by jurisdiction." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of cardiac arrest this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-neighbours", "name": "Neighbouring kinds and how to tell them apart", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "name": "Myocardial infarction", "difference": "Myocardial infarction involves heart muscle injury from ischaemia; cardiac arrest involves loss of effective circulation. Either can occur without the other." }, { "name": "Heart failure", "difference": "Heart failure is a clinical syndrome caused by impaired cardiac filling or output; circulation usually persists." }, { "name": "Respiratory arrest", "difference": "Respiratory arrest is cessation of effective breathing; cardiac circulation may initially continue." }, { "name": "Syncope", "difference": "Syncope is transient loss of consciousness from cerebral hypoperfusion with spontaneous recovery; loss of consciousness alone does not establish cardiac arrest." }, { "name": "Sudden cardiac death", "difference": "Sudden cardiac death is a fatal outcome attributed to a cardiac cause; cardiac arrest can be survived and can have noncardiac causes." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of cardiac arrest this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Which existing Vercy world model, if any, already owns cardiac arrest and should be linked rather than duplicated?", "Which operational standard should define episode boundaries, sustained return of spontaneous circulation and recurrent arrest?", "How should paediatric arrest and neonatal resuscitation relate to this entry, particularly interventions begun before complete circulatory arrest?", "How should effective circulation be operationalised when mechanical circulatory support makes pulse-based recognition unreliable?", "Which jurisdiction-specific protocols and verification requirements govern treatment limitations and termination decisions in the intended deployment?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 19, "questions": 29 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "discipline or field of knowledge", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a cardiac arrest, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an AI agent to recognise suspected cardiac arrest, represent an episode and its uncertainty, and support timely escalation and authorised clinical decisions.", "characteristics": { "substance": "information", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "read and interpreted" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: pulseless electrical activity, Commotio cordis, out-of-hospital cardiac arrest, rearrest, asystole, traumatic cardiac arrest.", "6 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 72 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a cardiac arrest, and on what evidence are they told apart?" ], "whatItIsMadeOf": "content that has to be carried by something else", "physicalCharacter": [ "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "read it and act on what it says" ], "howItIsRecognised": [], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "pulseless electrical activity", "Commotio cordis", "out-of-hospital cardiac arrest", "rearrest", "asystole", "traumatic cardiac arrest" ] } ], "standing": "Described in 72 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 6 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one cardiac arrest from another, and a cardiac arrest from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a cardiac arrest, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a cardiac arrest, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a cardiac arrest is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a cardiac arrest, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a cardiac arrest, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a cardiac arrest is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a cardiac arrest sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a cardiac arrest, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a cardiac arrest, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a cardiac arrest is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a cardiac arrest from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a cardiac arrest, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a cardiac arrest, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a cardiac arrest is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a cardiac arrest passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a cardiac arrest between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a cardiac arrest, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a cardiac arrest, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a cardiac arrest is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a cardiac arrest, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a cardiac arrest is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a cardiac arrest, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a cardiac arrest, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a cardiac arrest is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "content-and-access", "name": "Content, encoding and access", "description": "What a cardiac arrest says, how it is encoded and who may read it.", "rationale": "An informational thing carries content that can be copied, versioned and withheld, none of which its physical carrier explains.", "layers": [ { "id": "content-and-encoding", "name": "Content and encoding", "description": "The content itself, its format and its language.", "findings": [ { "id": "content-and-format", "name": "Content, format and language", "description": "What a cardiac arrest contains and in what form it is held.", "questions": [ { "id": "content-and-format-q01", "text": "What identifies and describes the content of a cardiac arrest, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "content-and-format-q02", "text": "Who or what asserted this about the content of a cardiac arrest, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "content-and-format-q03", "text": "What may an agent decide or do once the content of a cardiac arrest is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "access-and-rights", "name": "Access, rights and retention", "description": "Who may read, copy or change it, and for how long it is kept.", "findings": [ { "id": "access-rules", "name": "Access rules and retention", "description": "The permissions attached to a cardiac arrest and the period it survives.", "questions": [ { "id": "access-rules-q01", "text": "What identifies and describes access to a cardiac arrest, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "access-rules-q02", "text": "Who or what asserted this about access to a cardiac arrest, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "access-rules-q03", "text": "What may an agent decide or do once access to a cardiac arrest is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "subject-and-method", "name": "Subject matter and method", "description": "What cardiac arrest studies and how it establishes anything.", "rationale": "A field is identified by its questions and its methods, and those are what distinguish it from the fields next to it.", "layers": [ { "id": "subject", "name": "Subject matter", "description": "The questions it takes as its own.", "findings": [ { "id": "subject-record", "name": "Questions and objects of study", "description": "What it is about, stated so a neighbouring field can be told apart.", "questions": [ { "id": "subject-record-q01", "text": "What questions and objects does cardiac arrest take as its own?", "kind": "definition" }, { "id": "subject-record-q02", "text": "Which questions does it share with a neighbouring field, and who claims them?", "kind": "boundary" } ] } ] }, { "id": "method", "name": "Method and evidence", "description": "How claims are established and what counts as evidence.", "findings": [ { "id": "method-record", "name": "Methods and standards of evidence", "description": "The methods used and what they are taken to establish.", "questions": [ { "id": "method-record-q01", "text": "By what methods does cardiac arrest establish claims, and what counts as sufficient evidence?", "kind": "provenance" }, { "id": "method-record-q02", "text": "What kind of claim can this field not settle, and where should an agent look instead?", "kind": "action" } ] } ] } ] }, { "id": "institutions-and-classification", "name": "Institutions and classification", "description": "Where cardiac arrest is practised and how catalogues place it.", "rationale": "The institutional footprint is the evidence that a field exists as a field rather than as a topic.", "layers": [ { "id": "institutions", "name": "Institutional markers", "description": "Societies, journals, degrees and departments.", "findings": [ { "id": "institution-record", "name": "Bodies and venues", "description": "Where the field organises itself.", "questions": [ { "id": "institution-record-q01", "text": "Which societies, journals or degrees mark cardiac arrest as an established field?", "kind": "provenance" }, { "id": "institution-record-q02", "text": "What would show that it is emerging or dissolving rather than established?", "kind": "boundary" } ] } ] }, { "id": "classification", "name": "Classification schemes", "description": "Where library and research classifications put it.", "findings": [ { "id": "classification-record", "name": "Codes and their disagreements", "description": "The classification codes that place it, and where they differ.", "questions": [ { "id": "classification-record-q01", "text": "Which classification schemes place cardiac arrest, under what codes?", "kind": "definition" }, { "id": "classification-record-q02", "text": "Where do those schemes disagree about its scope?", "kind": "boundary" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a cardiac arrest came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a cardiac arrest and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a cardiac arrest, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a cardiac arrest, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a cardiac arrest is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a cardiac arrest is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a cardiac arrest, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a cardiac arrest, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a cardiac arrest is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 6, "layers": 12, "findings": 14, "questions": 38 } } } }