When assessing blood pressure, the sounds that is heard through a stethoscope placed over the artery is termed as: mcq given below:
Q. When assessing blood pressure, the sounds that is heard through a stethoscope placed over the artery is termed as:(a) Crackles / |
| Do you Agree with Answer comment below |
🩺 Korotkoff Sounds During Blood Pressure Measurement
✅ Answer: (b) Korotkoff Sounds
📖 What are Korotkoff Sounds?
Korotkoff Sounds are the sounds heard with a stethoscope while measuring blood pressure using a sphygmomanometer.
👉 They are produced as blood begins to flow through the partially compressed brachial artery when the cuff pressure is slowly released.
🩺 Why are Korotkoff Sounds Important?
The sounds help determine:
- First Korotkoff sound (Phase I) = Systolic Blood Pressure
- Disappearance of sounds (Phase V) = Diastolic Blood Pressure
👉 Therefore, Korotkoff sounds are essential for accurate blood pressure measurement.
❌ Why Other Options Are Wrong?
(a) Crackles
❌ Crackles are abnormal lung sounds heard during auscultation of the lungs, often in pneumonia or pulmonary edema.
(c) Brachial Sounds
❌ This is not the correct medical term used for blood pressure sounds.
(d) Murmurs
❌ Murmurs are abnormal heart sounds caused by turbulent blood flow through the heart valves.
📝 Korotkoff Sound Phases
| Phase | Meaning |
|---|---|
| Phase I | First tapping sound = Systolic BP |
| Phase II–IV | Changes in sound quality as cuff pressure decreases |
| Phase V | Disappearance of sound = Diastolic BP |
Korotkoff = Blood Pressure Sounds 🩺
First Sound → Systolic
Last Sound Disappears → Diastolic
📌 Exam Tip: Korotkoff sounds are heard over the brachial artery while deflating the blood pressure cuff. Phase I indicates the systolic pressure, and Phase V (disappearance of sounds) indicates the diastolic pressure in adults.
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