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The coronary calcium scan tells you how much calcified plaque is in your heart’s arteries. You and your doctor can take the results and decide if you need to make any changes to your medicine or...
4 min read. This test checks the amount of certain antibodies called immunoglobulins in your body. Antibodies are proteins that your immune cells make to fight off bacteria, viruses, and other...
High levels or uric acid, one of the body’s waste products, can be a sign of gout or kidney stones. Learn what a uric acid blood test tells you, how it’s done, and what the results mean.
Iron is a mineral you get from food, while ferritin is a blood protein that stores iron. But testing for ferritin is one way your doctor tells whether you're storing a healthy amount of iron in...
Health & Diet Guide. Vitamin B12: What to Know. Medically Reviewed by Jennifer Robinson, MD on January 14, 2023. Written by WebMD Editorial Contributors. How Much Should You Get? Food Sources of...
What Is Prostate-Specific Antigen? Prostate -specific antigen ( PSA) is something made by the prostate gland. High PSA levels may be a sign of prostate cancer, a noncancerous condition such as...
What Is a BNP Test? When you have heart failure, your heart makes more B-type natriuretic peptide (BNP) and N-terminal-proBNP (NT-proBNP). Levels of both go up in your blood when your heart...