Anaemia Flashcards
What is anaemia?
- Reduction in the amount of haemoglobin in a given volume of blood below what would be expected in comparison with a healthy subject of the same age and gender
- Hb is reduced
- RBC and Hct/PCV are usually also reduced
NOTE: occasionally it results from an increase in the volume of plasma rather than a decrease in the amount of haemoglobin
In a healthy person, anaemia resulting from an increase in plasma volume cannot persist because…?
The excess fluid in the circulation is excreted
For practical purposes, anaemia can therefore be regarded as resulting from a decrease of the absolute amount of haemoglobin in the circulation
What are the mechanisms of anaemia?
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What are the classifications of anaemia (based on cell lsize)?
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What are the common causes of microcytic anaemia?
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Macrocytic anaemias usually result from…?
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Whta is megaloblastic erythropoiesis?
Slide 13
What is a megaloblast?
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What are the common causes of macrocytic anaemia?
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What are the mechanisms of normocytic normochromic anaemia?
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What are the causes of normochromic anaemia?
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What is haemolytic anaemia?
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Haemolytic anaemia can also be classified as…?
Inherited or acquired
Intravascular or extravascular
Inherited haemolytic anaemia can result from…?
Slide 22
Acquired haemolytic anaemia usually results from…?
Slide 22