A urine-specific gravity test compares the density of urine with the density of water. The test may help healthcare professionals identify dehydration, a kidney problem, or a condition like diabetes ...

A urine drug test is used to detect the presence of illegal and prescription drugs in urine. It’s also known as a urine drug screen. In a urine drug test, a sample of urine is sent to a lab. A tester ...

Taking a page from home-pregnancy tests, scientists have designed a dipstick that can detect traces of cocaine or other drugs in a person's bodily fluids. Researchers from the University of Illinois ...