Chapter 10: Diseases Of Red Blood Cells Flashcards
(9 cards)
1
Q
WHO definition of anemia in:
Infants and children 6 months - 6 years and pregnant females
A
<11.0 g/dL
2
Q
WHO definition of anemia in:
Children, 6-14
Non pregnant adults females
A
<12.0 g/dL
3
Q
WHO definition of anemia in:
Adult males
A
<13.0 g/dL
4
Q
How can anaemia present
A
Pallor
Fatigue
Chest pain from poor cardiac oxygenation
Altered mental status
5
Q
How does anemia present when mild or in an otherwise healthy patient
A
An abnormal cbc
6
Q
How does anemia stimulate the cardiopulmonary system to compensate
A
Attempts to make the most of the blood available by
- exchanging gases (tachypnea)
- circulated more volume (tachycardia)
7
Q
A
8
Q
How does the marrow respond to anemia as a stimulus for compensatory mechanism
A
- increased erythropoiesis, stimulated by increase in renal production of EPO in response to hypoxia (successful in non maturation defect anemia)
- immature erythrocytes released, many contain ribosomes and RER (reticulocytes)
9
Q
A
