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A hiatal hernia repair is surgery for a hiatal hernia. A hiatal hernia is an abnormal bulging in your belly. Read on to learn more about this surgery.

A retrograde pyelogram is an imaging test that uses X-rays to look at your bladder, ureters, and kidneys. Read on for details about what to expect before, during, and after this test.

A computed tomography (CT) scan is a type of imaging test. It uses X-rays and a computer to make images or slices of the body. A CT scan can make detailed pictures of any part of the body, including the bones, muscles, fat, organs, and blood vessels. They are more detailed than regular X-rays.

The acetaminophen drug level is a blood test used to screen for the presence of the common pain reliever acetaminophen.

This test looks for certain substances in your blood that may mean you have a form of liver disease.

This blood test is done to help your doctor diagnose a type of illness called an autoimmune disease.

The antithrombin activity and antigen tests are used to help find out what may be causing abnormal blood clots in your body.

This test looks for the antigen called CA 19-9 in your blood. It may help diagnose pancreatic cancer and other types of cancer.

This test looks for bacteria that cause chlamydia, the most common sexually transmitted infection in the U.S.