After Elizabeth Moreno had back surgery in late 2015, her surgeon prescribed an opioid painkiller and a follow-up drug test that seemed routine — until the lab slapped her with a bill for $17,850. A ...

At-home drug tests are urine or saliva tests that can identify if illegal or prescriptions drugs are present in your body. These tests are an alternative to going in person to a laboratory or other ...

A urine protein test measures the amount of protein in a urine sample. A doctor may suggest this test to help evaluate and monitor kidney function and potentially detect kidney damage. The kidneys ...

A new study shows smoking raises blood pressure even at low levels. Urine tests reveal the real exposure behind the habit.

In her late 20s and attending college in Texas, Elizabeth Moreno suffered from debilitating back pain caused by a spinal abnormality. "I just could not live with the pain," she says. "I couldn't get ...

The cups of urine travel by express mail to the Comprehensive Pain Specialists lab in an industrial park in Brentwood, Tenn., not far from Nashville. Most days bring more than 700 of the little sealed ...