Question:medium
Which of the following is NOT a high pitched heart sound?
Which of the following is NOT a high pitched heart sound?
Show Hint
Group these by pitch; the atrial myxoma sound is the low pitched one.
Updated On: Jun 24, 2026
- Mid systolic click
- Pericardial shudder
- Opening snap
- Tumor plop sound
Show Solution
The Correct Option is D
Solution and Explanation
Step 1: Classifying these auscultatory findings by frequency separates the clicks and snaps (high) from the gallops and the myxoma sound (low). Since the tumour plop belongs to the low frequency group, it is the odd one out and option d is correct.
Step 2: A mid systolic click, the classic accompaniment of mitral valve prolapse, is sharp and high pitched, audible during systole.
Step 3: The opening snap of mitral stenosis and the pericardial knock or shudder of constrictive pericarditis are both crisp, high frequency early-diastolic events.
Step 4: By contrast the tumour plop of a left atrial myxoma is a soft, low pitched diastolic sound produced when the pedunculated tumour tumbles through the mitral orifice, sometimes audible only in certain body positions. Its low pitch makes it the exception asked for.
\[\boxed{\text{Tumor plop sound}}\]
Step 2: A mid systolic click, the classic accompaniment of mitral valve prolapse, is sharp and high pitched, audible during systole.
Step 3: The opening snap of mitral stenosis and the pericardial knock or shudder of constrictive pericarditis are both crisp, high frequency early-diastolic events.
Step 4: By contrast the tumour plop of a left atrial myxoma is a soft, low pitched diastolic sound produced when the pedunculated tumour tumbles through the mitral orifice, sometimes audible only in certain body positions. Its low pitch makes it the exception asked for.
\[\boxed{\text{Tumor plop sound}}\]
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