A nurse has assessed a client's blood pressure near the beginning of a shift and obtained a systolic blood pressure of 138 mm Hg and a diastolic blood pressure of 71 mm Hg. The systolic blood pressure is characterized by which of the following?
A) It represents the client's blood pressure between heart beats.
B) It represents peak pressure in the client's arteries.
C) It peaks when the client's heart is filling with blood.
D) It corresponds directly to the client's heart rate.
B
Feedback:
Systolic blood pressure is the pressure within the arterial system when the heart contracts. Diastolic blood pressure is the pressure when the heart relaxes and fills with blood. Both are reflections of pressure in the arterial vessels, not the veins. SBP does not correspond directly with heart rate, though heart rate is one factor among many that influence blood pressure.
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