In-depth

Symptoms

Dizziness

Nausea and vomiting

Shortness of breath

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

Chest X-rays

CT coronary angiogram

CT scan

Echocardiogram

Electrocardiogram

Holter monitor

MRI

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

Treatments and drugs

Angioplasty

Coronary angioplasty and stents can reopen clogged heart arteries if buildup of plaques is causing chest pain, shortness of breath or a heart attack.

Nov. 01, 2014