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Myocardial perfusion is an imaging test. It's also called a nuclear stress test. It is done to show how well blood flows through the heart muscle. It also shows how well the heart muscle is pumping. For example, after a heart attack, it may be done to find areas of damaged heart muscle. This test may be done during rest and while you exercise.

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.

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.

Raking and disposing of leaves is more than a chore. It's a vigorous aerobic workout. Although exercise is good for you, this workout is full of demanding repetitive motions. Read on for helpful safety tips.

People who keep lost weight off tend to have several habits in common. Here are strategies that can help you be a successful long-term loser.

People who are actively involved in their medical care stay healthier, recover more quickly when they're ill, and live longer, healthier lives.