Which Korotkoff sound indicates the end of diastolic pressure?
Understand the Problem
The question is asking about Korotkoff sounds and their relation to blood pressure measurement. Specifically, it inquires which sound corresponds to the end of diastolic pressure during blood pressure readings.
Answer
Fifth phase of Korotkoff indicates the end of diastolic pressure.
The final loss of all sound (fifth phase of Korotkoff) indicates the end of diastolic pressure.
Answer for screen readers
The final loss of all sound (fifth phase of Korotkoff) indicates the end of diastolic pressure.
More Information
Korotkoff sounds are used during blood pressure measurements with a sphygmomanometer. The fifth phase, which marks the disappearance of sound, is generally accepted as the point of diastolic pressure in a clinical setting.
Tips
A common mistake is confusing the fourth sound, which can sometimes be used to indicate diastolic pressure, with the fifth sound, which is more widely accepted.
Sources
- Korotkoff Sound - an overview | ScienceDirect Topics - sciencedirect.com
- Manual Blood Pressure Measurement - BC Open Textbooks - opentextbc.ca
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