When a doctor listens to the heart of a person with a heart murmur, they may hear a whooshing, swishing, humming, or rasping sound. This is due to rapid, turbulent blood flow through the heart.

How often does a child, when at the pediatrician's office for a checkup, find the stethoscope an object of fascination? The doctor explains to the child that the instrument is used to listen for the ...