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A femtoliter (fL) is a measure of volume that is equal to one-quadrillionth of a liter. A liter is slightly larger than a quart.

Discusses stool analysis, a test used to look for bacteria, parasites, or blood in the digestive tract. Covers why and how it is

Ascites is the buildup of fluid in the abdomen. The extra fluid can cause your belly to swell and make it hard to breathe. Ascites

Hepatic encephalopathy is a problem in the brain. It happens when the liver has been damaged and can't filter toxins from the

Spontaneous bacterial peritonitis (SBP) is an infection of fluid that builds up in the belly. It causes pain and swelling inside

Variceal bleeding happens when large veins, often in the esophagus, get swollen and break open. It's caused by a condition called

Hair analysis is done by evaluating hair structure and DNA from cells attached to the root of the hair. It can be used to find out

A breath alcohol test is an estimate of your blood alcohol concentration (BAC). The test measures the amount of alcohol in the air

Crying is a child's first way of communicating. Along with crying, a child may not act normally when something is wrong. Infection

Poison oak has leaves that look like oak leaves, usually with three leaflets but sometimes up to seven leaflets per leaf group. It