Heartbeat Lub Dub Sound
🔊 (S2)
Tap 1 → “Lub” (mitral/tricuspid valves close) Tap 2 → “Dub” (aortic/pulmonic valves close) heartbeat lub dub sound
Recognizing these normal sounds helps clinicians identify abnormalities like splitting, murmurs, or gallops. A simple reminder that structure equals function—and rhythm matters. 🔊 (S2) Tap 1 → “Lub” (mitral/tricuspid valves
The pause after the “dub” is actually longer than the pause after the “lub.” That’s your heart relaxing before the next beat. heartbeat lub dub sound
The lub-dub sound is an essential indicator of cardiac health. Changes in the heart sounds can indicate various cardiac conditions, such as: