Anaemia Flashcards

1
Q

name 2 causes of microcytic anaemia

A

Iron deficiency

thalaseamiea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Blood film of iron deficiency anaemia. Which cells will be seen

A

Rod cells (pencil cells)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

name 2 causes of macryocytic anaemia (megaloblastic anaemia). WHY is this the case

A

B12 deficiency and Folate deficiency

- B12 and folate are essential co-factors for nuclear maturation.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

microcytic anaemia due to problem with

  • cytoplasm
  • nucleus
A

Cytoplasm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Macrocytic anaemia due to problem with

  • cytoplasm
  • nucleus
A

Nucleus

- abnormal nuclear maturation (nucleus fails to divide)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Most common cause of B12 deficiency

A

Pernicious anaemia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Name 4 causes of B12 deficiency

A

Pernicious anaemia
Vegan
Gastrectomy
Coeliac disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Where is B12 absorbed

A

ileum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Where is folate absorbed

A

Jejunum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which auto-antibodies do you check for in ?pernicious anaemia

A

anti Gastric parietal cell

anti Intrinsic factor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How do you manage pernicious anaemia

A

Vit B 12 injections for life

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is spurious macrocytosis

Name 2 causes

A

Volume of mature red cells is normal
but MCV is measured as high

Reticulocytosis (bigger than mature cells)
Cold agglutains

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Name an example of a normocytic anaemia

A

Anaemia of chronic disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Anaemia of chronic disease

  • transferrin (increased/reduced)
  • serum ferritin (increased/reduced)
A

Transferrin - reduced

Serum ferritin - increased

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Haemolytic anaemia

- microcytic/normocytic/macrocytic

A

Normocytic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What will blood film of haemolytic anaemia show

A

Polychromatic red cells

- due to increased reticulocytosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Heinz bodies makes you think

A

G6PD deficiency

18
Q

Which kind of inheritance is G6PD deficiency

A

X-linked recessive

19
Q

Microcytic anaemia means

  • nucleus problem
  • cytoplasm problem
A

Cytoplasm problem

20
Q

Macrocytic anaemia means

  • nucleus problem
  • cytoplasm problem
A

Nucleus problem

21
Q

Which kind of anaemia is thalassaemia

A

Microcytic anaemia

22
Q

Target cells on blood film suggest (2)

A

Iron deficiency anaemia

Splenectomy

23
Q

Rod cells on blood film suggest

A

Iron deficiency anaemia

24
Q

Stores of folate / B12 last longer?

A

B12 - lasts 2-4 years

Folate - lasts 4 months

25
Name main cause of non-megaloblastic macrocytic anaemia
Alcohol
26
What is the best autoantibody to check for pernicious anaemia
anti-intrinsic factor antibody
27
What should you treat first - B12 deficiency - folate deficiency WHY
Treat B12 deficiency first, otherwise you risk sub acute combined degeneration of the cord
28
Management of pernicious anaemia
Vitamin B12 injections for life (hydroxycobalamin) | - administered every 3 months
29
MCV in anaemia of chornic disease is typically
Normal - normocytic anaemia
30
Adult levels of HbA are reached by X months of life?
6-12 months
31
For oxygen to bind, iron must be in Fe 3+ / Fe 2+ state?
Must be in Fe2+ for oxygen to bind
32
Oxygen dissociation curve shifts to the right. This means more/less oxygen is bound?
Less oxygen bound so more oxygen delivered to tissues
33
if 3 alpha Hb genes are missing, what is this called
Alpha thalassaemia - HbH disease
34
If there are 0 alpha Hb genes, what is this called?
Alpha thalassaemia - Hb barts hydrops foetalis
35
What is the most severe form of alpha thalassaemia ?
Hb barts hydrops foetalis
36
Management of beta thalasseamia trait
No management required
37
Management of beta thalasaemia intermedia
Occasional transfusion
38
6-24 month old, pale, failure to thrive, splenomegaly, target cells. What is likely diagnosis? and management?
Beta thalassaemia major | Tx: lifelong transfusion
39
Howell Jolly bodies indicates
Post splenectomy
40
Bone deformities occur in which type of anaemia
Thalassaemia
41
What are the 3 main features of haemolytic anaemia
Jaundice Splenomegaly Anaemia
42
patient that turns jaundice and becomes anaemic after eating broad beans, developing an infection or being treated with antimalarials. The underlying diagnosis might be
G6PD deficiency