MCQ – 46907

All of the following are features of thyrotoxicosis, EXCEPT-

A.	Diastolic murmur
B.	Soft non ejection systolic murmur
C.	Irregularly, irregular pulse
D.	Scratching sound in systole

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Correct Answer » D Explanation

D. Scratching sound in systole

• A scratching sound is characteristic of a pericardial friction rub, not of thyrotoxicosis.

• Most commonly heard in pericarditis, especially acute fibrinous pericarditis.

Thyrotoxicosis:

Thyrotoxicosis is a clinical syndrome resulting from excessive thyroid hormones, leading to a hypermetabolic state affecting multiple organ systems, including the cardiovascular system.