Which of the following statements about measurement of blood pressure is true?
A
First sound heard through the stethoscope represents the diastolic blood pressure
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B
Diastolic blood pressure measures the force of the blood in the arteries during ventricular relaxation
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C
Systolic blood pressure measures the force of blood pushing on the arterial walls during ventricular relaxation
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D
Average blood pressure of females is greater than that of males
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Solution
The correct option is B Diastolic blood pressure measures the force of the blood in the arteries during ventricular relaxation The correct answer is B.
The diastolic reading, or the bottom number, is the pressure in the arteries when the heart rests between beats. This is the time when the heart fills with blood and gets oxygen. A normal diastolic blood pressure is lower than 80. A reading of 90 or higher means you have high blood pressure.