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 ...

An alcohol urine test involves a lab testing a person’s urine sample for the presence of alcohol. Three types of this test exist. One measures unmetabolized alcohol, while the others measure two of ...

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 ...