Lab tests that measure urine concentration and hormonal levels can help diagnose diabetes insipidus, a condition that causes excessive urination. Share on Pinterest Jovana Milanko/Stocksy United ...

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

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 new low-cost, portable device that uses a black box and smartphone camera to help patients get accurate urine test results at home is on the horizon, thanks to engineers from the Electrical ...

Devices used to measure biological readouts, known as biosensors, determine the concentration of a particular substance in a biological sample. While you may not recognize the name, you are probably ...

Blood pregnancy tests can tell you if you're pregnant 6 to 14 days after conception. You'll need to wait longer before taking ...

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 ...