What is the role of haptoglobin in the context of hemoglobin and oxygen transport?
A
It is a protein that binds to free hemoglobin in the plasma to prevent kidney damage
✓
B
It is an enzyme that breaks down hemoglobin in the liver
C
It is a hormone that regulates erythropoiesis
D
It is a receptor that binds to transferrin to regulate iron transport
Explanation
Haptoglobin is a protein that binds to free hemoglobin in the plasma, preventing its loss through the kidneys and protecting against kidney damage.
Source
Robbins and Cotran Pathologic Basis of Disease
Hematology
Hematology: Hemoglobin and Oxygen Transport
Hematology: Hemoglobin and Oxygen Transport
Easy
MEDICAL
Confidence: high
