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A resting RNA is a type of nuclear medicine test. A tiny amount of radioactive tracer is used during the scan. This test helps evaluate how well the heart pumps and how much blood is pumped with each heartbeat.

A resting and exercise radionuclide angiogram (RNA) is a type of nuclear medicine test. A tiny amount of radioactive substance is used to help show the heart's chambers in motion. This test can show how well the heart pumps with each heartbeat and how much blood is pumped with each heartbeat, during exercise and at rest.

Valvuloplasty is a procedure done to repair a stiff heart valve. It's done using a catheter and small incisions.

Learn more about osteoarthritis, the most common type of arthritis, by taking this quiz.

A liver transplant is surgery to replace a diseased liver with a healthy liver from another person. Read on to learn more.

Slings are a popular, natural way to carry your baby, but recent government warnings showed these slings can also be dangerous. Learn how to carry your baby safely.

Although lead poisoning is often associated with the paint of older homes, children may be exposed to lead if the soldering on water pipes is new. In fact, lead may be found in many parts of a home, including soil, food, or even the air.

Here are some common medicinal herbs. Most herbs have not been completely tested to see how well they work or to see if they interact with other herbs, supplements, medicines, or foods.

By thinking ahead and planning for your vacation before you go, the only surprises you'll encounter are the nice ones.