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Sputum is a thick fluid made in the lungs and in the airways leading to the lungs. A sputum culture is a test to find germs (such

Discusses urinary tract infection in teens and adults. Covers symptoms and how problems might be diagnosed with urinalysis or a

A stool culture is a test on a stool sample to find germs (such as bacteria or a fungus) that can cause an infection. A sample of

Discusses causes and symptoms of aneurysms that form in an artery called the aorta. Links to pictures of abdominal aneurysm and

A sweat test, also called a sweat chloride test, measures the amount of chloride in sweat. It is done to help diagnose cystic

Many people who have psoriasis have nail changes. This can involve: Pitting on the surface of the nail. Defects in the nail, such

Phototherapy is the use of ultraviolet (UV) light to slow the rapid growth of new skin cells and to decrease inflammation. This is

Syphilis tests are done to check for a syphilis infection. They look for antibodies to the bacteria that cause syphilis. Some

Includes info on psoriasis, a chronic skin disorder. Covers causes and symptoms, including scaly patches on the knees, elbows, and

Covers imaging test to check the thyroid gland and parathyroid glands. Includes info on problems the test checks for, such as