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 ...

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 ...

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 ...

Many people have peed in a plastic cup at the doctor’s office or on a stick at home. One standard test looks for sugar in the ...