leukocytosis
Let an agent explain leukocytosis in general terms, relay causes, types and evaluation from haematology sources, route leukostasis and severe infection signs to emergency care, describe the named forms, and distinguish leukocytosis from leukaemia, leukopenia, lymphocytosis as a specific type and laboratory artefacts, without interpreting individual results.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain leukocytosis in general terms, relay causes, types and evaluation from haematology sources, route leukostasis and severe infection signs to emergency care, describe the named forms, and distinguish leukocytosis from leukaemia, leukopenia, lymphocytosis as a specific type and laboratory artefacts, without interpreting individual results.
A white blood cell count above the normal range for age, commonly above about 11 x 10 to the power 9 per litre in adults, most often a reaction to infection, inflammation, stress, steroids, smoking or pregnancy, and less often a sign of blood cancers; forms the registry aliases name include granulocytosis and hereditary neutrophilia, plasmacytosis, digestive leukocytosis after meals, a historical concept, and transient myeloproliferative syndrome, a condition in some newborns with Down syndrome; extremely high counts can cause leukostasis, sludging of white cells in vessels, a medical emergency with breathing difficulty or neurological symptoms. Blood results should be interpreted by clinicians.
What it is for: Not applicable; a laboratory finding.
It can be explain causes and types; relay evaluation in general terms; describe named forms; route emergencies.
Distinguishing features
Laboratory finding
Usually reactive
Type-specific causes
Rare emergencies
What it looks like
Not visible; found on a full blood count.
Physical character
adult upper limit: about 11 x 10^9 per litre note - varies by laboratory
leukostasis risk: very high counts, often above 100 x 10^9 per litre note - in some leukaemias
registry parents: hemic system symptom, leukocyte disease note
How it is recognised
Raised white blood cell count
Transient myeloproliferative syndrome, plasmacytosis, hereditary neutrophilia, digestive leukocytosis, leukostasis, granulocytosis
Leukaemia is a cancer; leukopenia is a low count; lymphocytosis is raised lymphocytes; artefacts arise from sampling
Related models
is a kind of - in registry terms
includes -
can lead to - at extreme counts
is contrasted with -
In practice
Families and kinds
neutrophilia
lymphocytosis
monocytosis
eosinophilia and basophilia
leukemoid reaction
Standards and regulation
Laboratory reference ranges
Haematology referral guidelines
Failure modes and hazards
Interpreting individual results
Missing sepsis or leukostasis
Unnecessary alarm about cancer
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.leukocytosis
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What leukocytosis is.
Science.
Definition
Definition.
Definition
Definition.
- Does someone have very high white counts with breathing difficulty, confusion or signs of sepsis, in which case seek emergency care? boundary
- What is leukocytosis, and how does it differ from leukaemia, leukopenia, lymphocytosis and artefacts? definition
Forms
Named forms.
Forms
Forms.
- What are granulocytosis, hereditary neutrophilia, plasmacytosis, digestive leukocytosis, TMD and leukostasis? definition
- Which entry fits the specific form? action
Causes Causes.
Science.
Reactive
Reactive causes.
Reactive
Reactive.
- How do infection, inflammation, stress and steroids raise white counts? provenance
- Which references are standard? provenance
Malignant
Blood cancers.
Malignant
Malignant.
- When do guidelines consider blood cancer as a cause, in general terms? provenance
- Which sources are cited? provenance
Evaluation Evaluation.
Regulation.
Differential count
Differential count.
Differential count
Differential count.
- How does a differential count identify which white cells are raised? measurement
- Which entry fits white blood cell differential? action
Ranges
Reference ranges.
Ranges
Ranges.
- Why do reference ranges vary by age, pregnancy and ancestry, as studies note? provenance
- Is the presentation neutral and attributed? boundary
Context Special cases.
Context.
TMD
Transient myeloproliferative disorder.
TMD
TMD.
- What is transient abnormal myelopoiesis in newborns with Down syndrome? provenance
- Which entry fits transient abnormal myelopoiesis? action
History
Digestive leukocytosis.
History
History.
- What was the historical concept of digestive leukocytosis? provenance
- Is the information accurate? boundary
What the second pass must settle
- Should digestive leukocytosis be marked historical?
- Should transient myeloproliferative syndrome be a separate entry?
- How should reference ranges be linked?