Red Blood Cells

Question 1

what is the most appropriate definition of anemia:

a. decreased red cell mass and hemoglobin in unit blood volume.
b. decrease in hemoglobin amount in circulating blood.
c. decreased red cell mass and hemoglobin in blood plasma.
d. decreased red cell mass in unit blood volume.

Answer 1

a. decreased red cell mass and hemoglobin in unit blood volume.

Question 2

what causes enlarged red blood cells (macrocytosis)?

a. chronic diseases
b. iron deficiency
c. blood loss
d. vitamin B12 and folic acid deficiency
e. hemolysis

Answer 2

d. vitamin B12 and folic acid deficiency

Question 3

in what types of anemias production of red blood cells is accelerated?

a. during hemolysis
b. vitamin B12 or folic acid deficiency
c. after blood loss
d. iron deficiency
e. aplast

Answer 3

a. during hemolysis

c. after blood loss

Question 4

what can cause secondary absolute erythrocytosis?

a. polycythemia vera (vaquez disease)
b. thyrotoxicosis
c. high altitudes
d. inherited heart disease
e. dehydration

Answer 4

c. high altitudes

d. inherited heart disease

Question 5

what pathologies are associated with inherited anemias?

a. anti-erythrocyte antibodies
b. iron deficiency
c. hemoglobinopathies
d. enzymopathies
e. membranopathies
f. microangiopathies

Answer 5

c. hemoglobinopathies
d. enzymopathies
e. membranopathies