Under high pressure, the left ventricle ejects blood into the aorta; the peak pressure is known as:
a. diastolic pressure.
b. pulse pressure.
c. hypertension.
d. systolic pressure.
D
Under high pressure, the left ventricle ejects blood into the aorta; the peak pressure is known as systolic pressure. When the ventricles relax, the blood remaining in the arteries exerts a minimum or diastolic pressure. The difference between systolic and diastolic pressure is the pulse pressure. The most common alteration in blood pressure is hypertension, an often asymptomatic disorder characterized by persistently elevated blood pressure (BP). Hypertension is defined as systolic blood pressure (SBP) greater than 140 mm Hg, diastolic blood pressure (DBP) greater than 90 mm Hg.
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