Kidney function tests determine whether the kidneys are functioning typically or whether a person may need regular testing or further treatment. Many online companies design these types of tests for ...

Jay N. Yepuri, MD, MS, FACG, is a board-certified gastroenterologist and member of the Digestive Health Associates of Texas Board of Directors and Executive Committee. A liver function test checks how ...

Abnormal stress test results may suggest an underlying heart condition, such as coronary artery disease, or a blockage in the arteries supplying blood to the heart. Failing a stress test means you can ...

You generally don’t need to fast before a thyroid test, but a healthcare professional may advise you to prepare in other ways. The thyroid gland sits at the front of your neck and helps control your ...