What is the purpose of the hemoglobin-haptoglobin complex in the body?

A To increase the affinity of hemoglobin for oxygen
B To protect the kidneys from damage caused by free hemoglobin
C To enhance the transport of carbon dioxide
D To facilitate the uptake of oxygen by tissues
The hemoglobin-haptoglobin complex helps to protect the kidneys from damage caused by free hemoglobin, which can occur when red blood cells are broken down.
Guyton and Hall Textbook of Medical Physiology
Hematology Hematology: Hemoglobin and Oxygen Transport Hematology: Hemoglobin and Oxygen Transport Medium MEDICAL Confidence: high