Question

Which one of the following techniques makes use of Korotkoff sounds?

• A. Sphygmomanometry
• B. Audiometry
• C. Spirometry
• D. Tonometry

Hint:

- Korotkoff sounds are used only in blood pressure measurement.
- First sound = systolic pressure, disappearance of sound = diastolic pressure.

Answer 1

The Correct Option is A

Step 1: Korotkoff sounds are the sounds heard through a stethoscope placed over an artery when the cuff of a sphygmomanometer is deflated.
Step 2: These sounds arise due to turbulent blood flow as cuff pressure falls below systolic and diastolic pressures.
Step 3: Hence, Korotkoff sounds are used to measure systolic and diastolic blood pressure in sphygmomanometry.