A1C is a blood test used to screen people to find out whether they have diabetes or prediabetes.

This test measures the amount of 5-hydroxyindoleacetic acid in your urine. The test can help find out if you have a carcinoid tumor.

You have come to the decision with your healthcare provider to try an antidepressant medicine for depression. To take antidepressant drugs medicine safely, you will need some information, which you can find here.

A bone marrow biopsy involves removing a small sample of the bone marrow inside your bones for testing. Read on to learn what to expect before, during, and after this procedure.

This prenatal test involves taking a sample of tissue from the placenta to test for chromosomal abnormalities and certain other genetic problems.

A computed tomography (CT) scan 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.

Pulmonary angiogram is an X-ray image of the blood vessels of the lungs.

A mediastinoscopy is a procedure used to examine the mediastinum. This is the space behind the breastbone (sternum). Read on to learn more about the procedure, and what to expect.

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.