Find out what to expect during a needle biopsy.
Shortness of breath can be frightening. Most of the time, a heart or lung condition is the cause.
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.
Ultrasound imaging uses high-frequency sound waves to create images of structures in your body.
Apr. 04, 2014
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