Which of the statements below is an incorrect or false statement?
A) Blood typing for the Kell, Lewis, and Duffy factors is always done before a blood transfusion.
B) When a transfusion reaction occurs, the oxygen-carrying capacity of the transfused blood cells is disrupted and the clumping of RBCs in small vessels hinders blood flow to tissues beyond those points.
C) Transfusion of incompatible blood can be fatal.
D) Unique to the ABO blood group is the presence in the plasma of preformed antibodies.
A
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The fovea
a. is located in the exact center of the retina b. contains a greater abundance of rods than cones c. is the point on the retina at which the optic nerve leaves and blood vessels pass through d. exhibits all of the above e. exhibits only a and b
The gastric phase of gastric secretion
A. is triggered by taste, sight, thought, or smell of food. B. decreases the release of gastrin in the stomach. C. is mediated by impulses on sympathetic nerves. D. leads to the greatest volume of gastric secretion. E. leads to the least volume of gastric secretion.
All of the following are changes seen in the respiratory system with aging, except
A. decreased maximum minute ventilation. B. decreased inspiratory reserve volume. C. decreased lung compliance. D. decreased vital capacity. E. increased dead space.
Which of the following is a major metabolic effect of glucagon?
A. Increased glycogenolysis in liver B. Increased glucose uptake by muscle cells C. Decreased glycogenolysis in muscle D. Decreased gluconeogenesis in liver E. Increased triglyceride synthesis in adipose tissue