blood and blood cells Flashcards
anaemia: define anaemia and list the major causes and subclasses, classify according to red blood cell volume
1
Q
define anaemia
A
low blood haemoglobin concentration
2
Q
what is the normal cause of anaemia
A
iron deficiency
3
Q
define microcytic anaemia
A
low mean cell volume due to failed haemoglobin synthesis, causing a slow loss of blood
4
Q
examples of microcytic anaemia
A
menstruation, GIT cancer
5
Q
define normocytic anaemia
A
normal mean cell volume but acute blood loss (e.g. accident)
6
Q
how is normocytic anaemia treated
A
blood transfusion
7
Q
define macrocytic anaemia
A
high mean cell volume caused by a lack of B12 or folic acid for DNA synthesis, causing failed DNA synthesis and greater division, producing larger erythrocytes
8
Q
example of macrocytic anaemia
A
pregnancy
