Anaemia Flashcards

1
Q

What is anaemia?

A
  • 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

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2
Q

In a healthy person, anaemia resulting from an increase in plasma volume cannot persist because…?

A

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

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3
Q

What are the mechanisms of anaemia?

A

Slide 6

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4
Q

What are the classifications of anaemia (based on cell lsize)?

A

Slide 10

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5
Q

What are the common causes of microcytic anaemia?

A

Slide 11

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6
Q

Macrocytic anaemias usually result from…?

A

Slide 12

Slide 16

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7
Q

Whta is megaloblastic erythropoiesis?

A

Slide 13

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8
Q

What is a megaloblast?

A

Slide 14

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9
Q

What are the common causes of macrocytic anaemia?

A

Slide 17, 18

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10
Q

What are the mechanisms of normocytic normochromic anaemia?

A

Slide 19

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11
Q

What are the causes of normochromic anaemia?

A

Slide 20

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12
Q

What is haemolytic anaemia?

A

Slide 21

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13
Q

Haemolytic anaemia can also be classified as…?

A

Inherited or acquired

Intravascular or extravascular

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14
Q

Inherited haemolytic anaemia can result from…?

A

Slide 22

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15
Q

Acquired haemolytic anaemia usually results from…?

A

Slide 22

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16
Q

Extrinsic factors can interact with red cells that have an intrinsic abnormality
CLOZE

A

….

17
Q

Intravascular haemolysis occurs if there is…?

A

Slide 23

18
Q

Extravascular haemolysis occurs when…?|

A

Slide 23

19
Q

Often haemolysis is partly intravascular and partly extravascular
CLOZE

A

…..

20
Q

What are the differences between inherited and acquired haemolytic anaemia?

A

Slide 26

21
Q

When should you expect haemolyticanaemia?

A

Slide 28

22
Q

Give examples of inherited haemolytic anaemia

A

Slide 33

23
Q

Give some examples of acquired haemolytic anaemia

A

Slide 34

24
Q

What is hereditary spherocytosis?

A

Slide 35-38

25
Q

How is hereditary spherocytosis treated?

A

Slide 39

26
Q

What is glucose-6-phosphate dehydrogenase (G6PD) deficinecy?

A

Slide 40-50

27
Q

Autoimmune haemolytic anaemia results from…?

A

Slide 51-54

28
Q

How is autoimmune haemolytic anaemia diagnosed?

A

Slide 55

29
Q

How is autoimmune haemolytic anaemia treated?

A

Slide 56

30
Q

How is microangiopathic haemolytic anaemia treated?

A

Slide 57

31
Q

A microcytic anaemia is likely to be due to…?

Slide 58 SBA

A

…..

32
Q

Polycythaemia in a patient seeing his general practictionerin london because he has noticed his urine is red is most likely to be due to…?
Slide 59 SBA

A

…..