A patient is experiencing impaired circulation secondary to increased systemic arterial pressure. Which of the following statements is the most relevant phenomenon?
A)
Increased preload due to vascular resistance
B)
High afterload because of backpressure against the left ventricle
C)
Impaired contractility due to aortic resistance
D)
Systolic impairment because of arterial stenosis
Ans:
B
Feedback:
Increased pressure in the aorta and other arteries constitutes a greater amount of afterload work. This situation is not indicative of increased preload or impaired contractility. Systolic impairment is not a recognized characterization of inadequate cardiac performance.
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