Half-life of albumin is: (A) 36-48 hours, (B) 3-5 days, (C) 5-10 days, (D) 20 days
Answer is D. Albumin has a high capacity for binding water (approximately 18 ml/g), an intravasal residence time of approximately 4 h presupposing physiological capillary permeability as well as an in vivo half-life of approximately 18-21 days . Ref: guyton and hall textbook of medical physiology 12 edition page number: 418,419,420