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Electronystagmography (ENG) measures normal eye movement and involuntary rapid eye movements called nystagmus. It also checks the

What is abnormal uterine bleeding? Abnormal uterine bleeding is irregular bleeding from the uterus. It may be bleeding that is

A contraction stress test checks to see if your baby will stay healthy during contractions when you are in labor. This test

Discusses a traditional Chinese therapy that uses very thin needles placed in the skin to influence energy flow (called chi or qi)

Wavy lines mean ultrasound waves. During amniocentesis, amniotic fluid is drawn from the uterus.

Curved lines represent ultrasound waves.

Retinal imaging uses special cameras and scanners to make magnified images, or pictures, of the back of your eye. This includes

Beta-blocker medicines are used to prevent an episode of variceal bleeding by lowering the pressure in the enlarged veins (varices

Describes various sleep studies used to diagnose sleep disorders. Discusses problems like snoring, sleep apnea, insomnia, and

Ascites is the buildup of fluid in the abdomen. The extra fluid can cause your belly to swell and make it hard to breathe. Ascites