Which of the following plasma proteins plays a crucial role in maintaining the osmotic balance of blood?

A Albumin
B Globulin
C Fibrinogen
D Haptoglobin
Albumin is the most abundant plasma protein and plays a key role in maintaining the osmotic balance of blood by preventing excessive fluid shift from the vascular space to the interstitial space.
Albumin = Always balances osmotic pressure
Berne and Levy Physiology
Hematology Hematology: Blood Components Hematology: Blood Components Medium MEDICAL Confidence: high