Using Athena
163
PN: 905K520652 v2.8
Korotkoff Sounds
Korotkoff sounds can be auscultated on either arm.
To auscultate Korotkoff sounds,
1. Wrap the sphygmomanometer cuff around the arm on the same side as the connected
NIBP port
2. Place the stethoscope just above the brachial pulse
3. Pump up the blood pressure cuff and let the cuff pressure drop slowly by opening the
valve on the bulb slightly
4. Monitor the pressure displayed on the cuff gauge
All five phases should be recognized:
• Phase I - Clear, repetitive, tapping sounds (Systolic)
• Phase II - Longer beats, with some swishing sounds
• Phase III - Crisp, more intense rhythm sounds
• Phase IV - Muffled, less distinct sounds
• Phase V - Sounds disappear completely (Diastolic)
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