red blood cell
Let an agent explain red blood cells, relay structure, function, production and abnormal forms from haematology sources, describe the named forms, route severe anaemia symptoms, and distinguish red cells from white cells, platelets, plasma and haemoglobin as a molecule.
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 red blood cells, relay structure, function, production and abnormal forms from haematology sources, describe the named forms, route severe anaemia symptoms, and distinguish red cells from white cells, platelets, plasma and haemoglobin as a molecule.
The most common type of blood cell, also called an erythrocyte, a biconcave disc without a nucleus in mammals that carries oxygen from the lungs to tissues and carbon dioxide back, using the protein haemoglobin; the registry aliases name abnormal shapes and forms seen on blood films such as acanthocytes with spiky projections, echinocytes, degmacytes or bite cells, microcytes that are small, megaloblasts that are large immature precursors, and packed red blood cells, a transfusion product. Red cell abnormalities help diagnose anaemias and other diseases, and severe anaemia symptoms such as breathlessness, chest pain or fainting need urgent care.
What it is for: Carrying oxygen and carbon dioxide in blood.
It can be explain structure and function; relay production; describe abnormal forms; route severe anaemia symptoms.
Distinguishing features
Biconcave disc
No nucleus in mammals
Haemoglobin-filled
Diagnostic shape changes
What it looks like
Red biconcave discs, appearing as pale-centred circles on stained blood films.
Physical character
cell diameter: about 7-8 micrometres
lifespan: about 120 days
count: roughly 4-6 million per microlitre note - varies by sex and age
How it is recognised
Oxygen-carrying blood cell
Acanthocyte, degmacyte, echinocyte, megaloblast, microcyte, packed red blood cells
White cells fight infection; platelets aid clotting; plasma is the fluid; haemoglobin is the protein inside red cells
Related models
is a kind of - in registry terms
contains -
is contrasted with -
is contrasted with -
In practice
Families and kinds
normal erythrocytes
abnormal shapes such as acanthocytes and echinocytes
size variants such as microcytes and macrocytes
immature forms such as reticulocytes and megaloblasts
Standards and regulation
Blood transfusion and blood product regulations
Laboratory reference ranges
Failure modes and hazards
Severe anaemia
Transfusion reactions
Misreading blood films
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 a red blood cell is.
Science.
Definition
Definition.
Definition
Definition.
- Is there severe breathlessness, chest pain, fainting or very pale skin suggesting severe anaemia or blood loss, in which case seek urgent medical care? boundary
- What is a red blood cell, and how does it differ from white cells, platelets, plasma and haemoglobin? definition
Forms
Named forms.
Forms
Forms.
- What are acanthocytes, echinocytes, degmacytes, microcytes, megaloblasts and packed red cells? definition
- Which entry fits the specific form? action
Biology Biology.
Science.
Structure
Structure and function.
Structure
Structure.
- How does the biconcave shape aid oxygen transport? provenance
- Which references are standard? provenance
Production
Erythropoiesis.
Production
Production.
- How are red cells made and regulated by erythropoietin? provenance
- Which sources are cited? provenance
Clinical Clinical use.
Science.
Blood films
Blood films.
Blood films
Blood films.
- How do abnormal shapes point to specific diseases? provenance
- Which entry fits blood film? action
Anaemia
Anaemia.
Anaemia
Anaemia.
- How are anaemias classified by red cell size? provenance
- Which entry fits anemia? action
Context Transfusion.
Regulation.
Transfusion
Blood products.
Transfusion
Transfusion.
- How are packed red cells used in transfusion, and why is blood typing essential? provenance
- Is the information current? boundary
Doping
Blood doping.
Doping
Doping.
- How do agencies describe blood doping and its risks, with positions attributed? provenance
- Is the presentation neutral and attributed? boundary
What the second pass must settle
- Should abnormal cell shapes be separate entries?
- How should haematology atlases be linked?
- Should packed red cells be moved to blood product entries?