The myocardium:

A) is a double-walled sac that is filled with fluid.
B) is the smooth inner layer that reduces friction as the blood flows through the heart.
C) contracts to pump blood.
D) none of the above.

C

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Bill has a total protein of 7.5 g/dL and his protein electrophoresis reports a 12% ?-globulin. What is his ?-globulin level in g/dL?

A. 0.6 g/L B. 0.9 g/L C. 1.2 g/L D. 1.5 g/L

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