Fluid in lungs: The medical term for this is rales. It is a slight popping sound (like rice krispies in milk) heard when someone listens with a stethescope during breathing when the little sacs called alveoli open up after being stuck together by a little too much fluid in the lungs. It suggests congestive heart failure, or back up of fluid from a heart that is not pumping very efficiently.
Answered 4/14/2020
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