Which of the following will cause an increase in systemic vascular resistance?
a. Hydralazine c. Polycythemia
b. Nitroglycerin d. Moderate hypox-emia
ANS: C
Polycythemia increases the blood viscosity, which makes it more difficult for the heart to pump the blood, resulting in an increase in systemic vascular resistance. Moderate hypoxemia, hydrala-zine, and nitroglycerin all reduce systemic vascular resistance.
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Fill in the blank(s) with the appropriate word(s).
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What will be an ideal response?