Computed tomography is an imaging test that uses X-rays and a computer to make detailed images of the body. A CT scan shows details of the bones, muscles, fat, and organs. CT scans are more detailed than standard X-rays.

Amniocentesis is a prenatal test that helps you learn if your baby has genetic problems. Here's what you need to know about this test.

Pulmonary function tests (PFTs) are noninvasive tests that show how well the lungs are working. Read on to learn what to expect before, during, and after these tests.

A liver biopsy is a test used to diagnose liver conditions. Read on to learn more about the procedure.

A chest ultrasound is an imaging test that uses sound waves to look at the structures and organs in your chest. It can help your healthcare provider see how well your lungs and heart are working.

A renal venogram is an imaging test to look at the veins in and around your kidneys. Your doctor may also use the test to find out what is causing your high blood pressure (hypertension).

Fetal ultrasound is a test used during pregnancy to create an image of the baby in the mother's womb (uterus).

A dobutamine stress echocardiogram is a diagnostic test to assess the heart muscle under stress. If exercise on a treadmill is not an option (too much stress on the heart) due to a person's medical condition, a doctor may use an intravenous medicine called dobutamine. Dobutamine causes the heart to beat faster and will mimic the effects of exercise on the heart.

In cardiac catheterization (often called cardiac cath), a very small hollow tube, or catheter, is advanced from a blood vessel in the groin, arm, or neck through the aorta into the heart. Once it is in place, several diagnostic and treatment procedures can be done using catheterization.

A pelvic ultrasound is a scan that looks at the organs and structures in your pelvic area. Read on to learn details about what to expect before, during, and after this scan.