What does fremitus indicate about normal vibrating breast tissue?

What does fremitus indicate about normal vibrating breast tissue?

• A. Creates motion, which produces a signal.
• B. Produces no signal due to damping.
• C. Produces random noise.
• D. Visualizes calcifications.

Answer: (A)

Fremitus is about how mechanical vibrations travel through tissue and how that motion is converted into a detectable signal. In normal vibrating breast tissue, the applied vibration causes the tissue to move, and this movement is picked up as a signal. That motion and resulting signal indicate the tissue is transmitting the vibration as expected. If tissue were overly damped, you’d expect little or no signal, which isn’t characteristic of normal vibrating tissue. Fremitus isn’t about visualizing calcifications, and the signal from normal vibration isn’t simply random noise.

Fremitus is about how mechanical vibrations travel through tissue and how that motion is converted into a detectable signal. In normal vibrating breast tissue, the applied vibration causes the tissue to move, and this movement is picked up as a signal. That motion and resulting signal indicate the tissue is transmitting the vibration as expected. If tissue were overly damped, you’d expect little or no signal, which isn’t characteristic of normal vibrating tissue. Fremitus isn’t about visualizing calcifications, and the signal from normal vibration isn’t simply random noise.