In-depth

Symptoms

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.

Tests and diagnosis

Echocardiogram

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

Fetal ultrasound

During pregnancy, fetal ultrasound allows your health care provider to check on your baby's growth and development. Find out more about the exam.

Treatments and drugs

Heart transplant

A heart transplant can help both adults and children with severe heart problems who don't benefit from other treatment options.

Aug. 24, 2012