scurvy
Let an agent explain scurvy and its cause, relay symptoms, diagnosis, treatment and history from medical and historical sources in general terms, route people with symptoms to clinicians, and distinguish scurvy from other bleeding disorders, from rickets and from general malnutrition.
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 scurvy and its cause, relay symptoms, diagnosis, treatment and history from medical and historical sources in general terms, route people with symptoms to clinicians, and distinguish scurvy from other bleeding disorders, from rickets and from general malnutrition.
A disease caused by deficiency of vitamin C, or ascorbic acid, producing weakness, gum disease, bleeding into skin and joints known as scorbutic purpura, poor wound healing and, in infants, neonatal or infantile scurvy with bone changes; historically the scourge of sailors and besieged populations, scurvy is now rare but occurs with restricted diets, and is cured by vitamin C, with diagnosis and treatment by clinicians.
What it is for: Not applicable; a disease.
It can be explain cause and symptoms; relay diagnosis and treatment; route to clinicians; distinguish related conditions.
Distinguishing features
Single nutrient deficiency
Collagen failure
Rapid cure
Maritime history
What it looks like
Not a visible object; bleeding gums, bruising and corkscrew hairs.
Physical character
onset: after about 1-3 months without vitamin C note
Lind s trial: 1747 year
vitamin C isolated: 1928-1932 period - Szent-Gyorgyi
daily requirement: about 75-90 mg - adults
How it is recognised
Vitamin C deficiency disease
Scorbutic purpura, neonatal scurvy
Other bleeding disorders involve clotting; rickets is vitamin D deficiency; malnutrition is broader
Related models
is a kind of - in registry terms
is caused by lack of - in the diet
is contrasted with - vitamin D deficiency
was studied by - in a 1747 trial
In practice
Families and kinds
adult scurvy
infantile or neonatal scurvy
scurvy in restricted diets and eating disorders
historical scurvy at sea and in sieges
Identifiers
ICD-10 E54 ascorbic acid deficiency
MeSH D012614 Scurvy
Standards and regulation
Dietary reference intakes for vitamin C
Clinical guidelines for nutritional deficiencies
Failure modes and hazards
Missed diagnosis in modern settings
Agents giving personal medical or dietary advice
Myths about megadoses
Also called
Where this came from
wikidata · CC0 1.0
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 scurvy is.
Clinical.
Definition
Definition and symptoms.
Definition
Definition.
- What is scurvy, what are its symptoms including scorbutic purpura, and how does it differ from other bleeding disorders and rickets? definition
- Is the user describing symptoms of their own, which need a clinician? boundary
Cause
Cause.
Cause
Cause.
- Why does vitamin C deficiency cause collagen failure and bleeding? provenance
- Which entry fits vitamin C? action
Care Diagnosis and treatment.
Clinical.
Diagnosis
Diagnosis.
Diagnosis
Diagnosis.
- How is scurvy diagnosed today, and who is at risk? provenance
- Which references are standard? provenance
Treatment
Treatment.
Treatment
Treatment.
- How is scurvy treated and prevented, in general terms? provenance
- Which sources are cited? provenance
History History.
Attribution.
Sea
Scurvy at sea.
Sea
Sea.
- How did scurvy affect voyages, and how did Lind s trial and citrus rations change naval practice? provenance
- Which entry fits James Lind? action
Science
Discovery of vitamin C.
Science
Science.
- How was vitamin C identified and its role established? provenance
- Which entry fits the history of vitamins? action
Context Today.
Context.
Today
Scurvy today.
Today
Today.
- Where does scurvy still occur, and in which groups? provenance
- Which entry fits malnutrition? action
Infants
Neonatal scurvy.
Infants
Infants.
- What is neonatal or infantile scurvy, and how is it prevented? provenance
- Which entry fits infant nutrition? action
What the second pass must settle
- Should vitamin C and Lind s trial be the primary linked entries?
- How should medical and historical sources be linked?
- How should the neonatal form be recorded?