A nurse is educating a client on plasma proteins and their chief functions. Four groups of plasma proteins are manufactured in the liver. Based on this information, what are the important functions of albumin?
1 . Helps maintain blood pressure
2 . Provides immunity against infection and disease
3 . Provides thickness to the circulating blood volume
4 . Helps with blood clotting
A) 1, 2
B) 1, 3
C) 2, 4
D) 3, 4
B
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Albumin is the largest group, accounting for 60% to 80% of plasma proteins. Its important function is to provide thickness to the circulating blood volume, thus maintaining osmotic pressure. Osmotic pressure draws water from surrounding tissue fluid into capillaries and, thus, maintains fluid volume and blood pressure. Fibrinogen and prothrombin are two other plasma proteins essential for blood clotting. Gamma globulin provides immunity against infection and disease.
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