Heart Sounds Lub-dub ★ Plus

The "lub" is generally lower in pitch and lasts slightly longer than the second sound. 2. The "Dub" (Second Heart Sound - S2)

| Sound | Nickname | Cause | Timing | |-------|----------|-------|--------| | S1 | Lub | Closure of (mitral & tricuspid) at start of ventricular systole | Just after QRS complex on ECG | | S2 | Dub | Closure of semilunar valves (aortic & pulmonary) at start of ventricular diastole | Just after T wave on ECG | heart sounds lub-dub

NurseInTheMaking 2:02 Heart sounds - Wikipedia "ta-lub-dub" or "a-stiff-wall" It is a sign of a pathologic state, usually a failing or hypertrophic left ventricle, as in systemi... Wikipedia Heart Murmurs | The Texas Heart Institute® Heart Murmurs. ... Normal heart sounds come in pairs. The sounds are often described as a constant “lub-dub, lub-dub.” The first “... The Texas Heart Institute What Causes the Lub-Dub of the Heart? 21 Feb 2025 — The "lub" is generally lower in pitch and

The lub-dub rhythm of the heartbeat is a vital sign of a healthy cardiovascular system. Understanding the origins of these sounds can help appreciate the complex and coordinated process of the cardiac cycle. If you have concerns about your heart health or notice any abnormal sounds, consult a healthcare professional for proper evaluation and care. Wikipedia Heart Murmurs | The Texas Heart Institute®

While the lub-dub rhythm is a normal and healthy sound, abnormal heart sounds can indicate underlying cardiac issues. Some examples include: