A member asked:

Can hear knocking/clicking sound coming from chest with each heartbeat during a quiet night in bed without a stethoscope. why? when i stand upright, the noise disappears. [my chest x-ray and ekg done 4-5 months ago is normal.]?

A doctor has provided 1 answer
Dr. Samuel Galima answered

Specializes in Family Medicine

Abnormal heart sounds, or murmurs/rubs/gallops, are best heard and identified with a clinician's stethoscope and an echocardiogram. A chest x-ray and EKG are reassuring to rule out other things, however, does not fully evaluate the heart structure. Standing upright changes the blood flow to the heart, and minimally decreases blood pressure, which in turn decreases the turbulent flow.

Answered 7/6/2022

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