In-depth

Cough

An occasional cough is normal and healthy. A cough that persists for weeks signals an underlying problem.

CT scan

A CT scan is an imaging test that uses X-rays to produce detailed images of the inside of your body.

Dizziness

Dizziness has many possible causes. The cause of dizziness may be simple, or dizziness may be a sign of a more serious disorder.

Echocardiogram

Echocardiogram allows your doctor to see your heart in motion. Here's what you need to know about the test.

Electrocardiogram

An electrocardiogram (ECG or EKG) is a test that provides valuable clues about your heart health. Here's what you need to know about the test.

Heart disease

Heart disease, usually thought of as blockages in the arteries that can cause a heart attack, can describe any medical condition affecting your heart.

MRI

MRI uses a magnetic field and radio waves to create detailed images of the organs and tissues within your body.

Shortness of breath

Shortness of breath can be frightening. Most of the time, a heart or lung condition is the cause.

Tachycardia

Tachycardia, a rapid heart rate, is caused by an abnormality in your heart's electrical impulses. Tachycardia can cause serious complications, including sudden cardiac arrest.

Aug. 01, 2013

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