MCQ IN MEDICINE

Detailed explanation-1: -The bell of the stethoscope is best for picking up bruits. The diaphragm is more attuned to relatively high-pitched sounds; the bell is more sensitive to low-pitched sounds like bruits. When using the bell, apply it lightly over the area of the body you’re listening to.

Detailed explanation-2: -The bell should be used because vascular sounds are low-pitched. Usually, listening at one location on each side of the neck is sufficient. Some practitioners listen to three locations on the neck, but this is usually not needed because sound radiates.