Practice Question
When measuring blood pressure, the second sound heard indicates which component of the blood pressure reading?
Answer Choices:
Correct Answer:
Diastolic pressure
Rationale:
♦️ The second important sound identified—usually when Korotkoff sounds muffle or disappear—marks diastolic pressure.
♦️ Diastolic pressure reflects the pressure inside arteries when the heart relaxes between beats.
♦️ It gives information about peripheral vascular resistance, an essential cardiovascular indicator.
♦️Proper recognition prevents misinterpretation of BP readings, ensuring accuracy.
♦️Diastolic levels help determine risks for conditions like hypertension, stroke, and heart failure.
✖ Incorrect Answers Rationale (2 points each):
Auscultatory gap
♦️ This is a temporary disappearance of Korotkoff sounds, not the second sound.
♦️ It is a measurement artifact and not a BP component.
Systolic pressure
♦️Systolic is marked by the first Korotkoff sound, not the second.
♦️It represents ventricular contraction, not relaxation.
Pulse pressure
♦️Pulse pressure is the difference between systolic and diastolic, not heard as a Korotkoff sound.
♦️It is not identified during auscultation.
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This question is from NR302Quiz 3 BSNOL SEPT25 (D41234478) which contains 10 questions.
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Question Details
- Category: RN Nursing Exam(s)
- Subcategory: Examplify Exam(s)
- Domain: Health Assessment
- Answer Choices: 4