Heart Sounds 🫀🩺
✅ S1: Normal "LUB": closing of AV valve
✅ S2: Normal "DUB": closing of SL valve
❌ S3: Rapid filling of ventricles. Only normal during pregnancy or in peds patients.
❌ S4: Hard atria contraction forces blood into stiff ventricles. Ex: MI
🔥 Clinical Tip: Use the stethoscope DIAPHRAGM = HIGH pitched sounds (s1, s2) and the BELL = LOW pitched sounds (s3, s4, murmurs).
❤️ Happy Nursing Friends!!! XO Amanda
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