Quiz on Red Blood Cells and Related Disorders

What is the primary function of hemoglobin in red blood cells?

• Transport carbon dioxide

• Transport oxygen

• Regulate body temperature

• Store iron

Which of the following is a water-soluble complex of ferric salt and a protein?

• Ferritin

• Transferrin

• Hemosiderin

• Haptoglobin

What is the master regulatory hormone of systemic iron metabolism?

• Erythropoietin

• Transferrin

• Hepcidin

• Ceruloplasmin

What type of hemoglobin is predominant in adults?

• Embryonic hemoglobin

• Hemoglobin A2

• Hemoglobin A

• Hemoglobin F

Which condition is characterized by a decrease in the oxygen affinity of hemoglobin?

• Shift to the right

• Shift to the left

• Sideroblastic anemia

• Methemoglobinemia

What is the typical lifespan of a mature erythrocyte?

• 90 days

• 60 days

• 30 days

• 120 days

Which of the following is a characteristic of macrocytic anemia?

• Decreased MCV

• Increased MCV

• Normal MCV

• Decreased RDW

What is the most common enzyme deficiency leading to hemolytic anemia?

• Lactate dehydrogenase deficiency

• Hexokinase deficiency

• Glucose-6-phosphate dehydrogenase deficiency

• Pyruvate kinase deficiency

Which type of anemia is associated with the presence of Howell-Jolly bodies?

• Sideroblastic anemia

• Aplastic anemia

• Megaloblastic anemia

• Iron deficiency anemia

What is the primary cause of hereditary spherocytosis?

• Defective hemoglobin synthesis

• Defective red blood cell membrane

• Iron overload

• Vitamin B12 deficiency