Fitness basics
Learning Center
Chest X-rays
Learn what these chest images can show and what conditions they may uncover.
Cholesterol test
Measuring the amount of cholesterol and triglycerides in your blood can help predict your risk of blocked arteries in your heart and brain.
Complete blood count (CBC)
Learn what to expect from having this common blood test, why it's done and how to prepare.
Coronary angiogram
Learn more about this heart disease test that uses X-ray imaging to see the heart's blood vessels.
Coronary calcium scan
This heart CT test can show calcium deposits in the blood vessels. Know how the findings relate to your heart disease risk.
Cystoscopy
During cystoscopy, your doctor examines the inside of your bladder using a special instrument that's inserted into the bladder through the urethra.
Endoscopic ultrasound
Learn about this imaging test that uses both endoscopy and ultrasound. The test helps diagnose diseases related to digestion and the lungs.
Esophageal manometry
This test involves placing a thin, pressure-sensitive tube through your nose into your esophagus to measure pressure as you swallow.
Fecal occult blood test
Learn how healthcare professionals use fecal occult blood tests, such as the fecal immunochemical test, to screen for colon cancer.
Feminizing surgery
Find out how feminizing surgical procedures can help better align the body with a person's gender identity.
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