Blood indices Flashcards
What is MCV, how is it calculated?
Mean cell volume [fl]
Heamatocrit (L/L) x 1000 / number of erythrocytes (10^12 /L)
MCH
Mean cell hemoglobin [pg]
haemoglobin (g/l) / number of erythrocytes (10^12/L)
MCHC
Mean cell haemoglobin concentration [g/L]
haemoglobin (g/L) / haematocrit (L/L)
MCV differences?
Macrocytosis (caused by vit B12/ folic acid deficiency)
Microcytosis ( iron deficiency) –> most common
MCH differences?
Hyperchromia –> high levels
Hypochromia –> low levels
What is anemia based on?
cell size (MCV) and the amount of Hgb (MCH)
Name types of anemia?
Microcytic, normocytic, macrocytic, hypochromic, normochromic, hyperchromic and combinations –> microcytic/hypochromic (iron-deficiency)
microcytic/normochromic (kidney failure)