The 24-hour probe study measures the pH (acid level) in your food pipe (esophagus). For the 24-hour probe study, your health care provider will insert a thin tube into your nose.

A 24-hour urine collection is a simple lab test that measures what’s in your urine. The test is used to check kidney function.

An angiogram is an imaging test that uses X-rays to look at your blood vessels. An abdominal angiogram looks at the blood vessels in your belly (abdomen).

Abdominal aortic aneurysm (AAA) repair is done to treat an aneurysm. An aneurysm is a bulging, weak spot in the aorta that may be at risk for rupturing.

An abdominal ultrasound is a procedure used to assess the organs and structures within the abdomen (belly).

X-rays use beams of energy that pass through body tissues onto a special film and make a picture. They show pictures of your internal tissues, bones, and organs.

Arthritis, itself a group of more than 100 different diseases, is one category of rheumatic diseases.

Detailed information on cancer in children, including causes, diagnosis, treatment, and coping

When brain cells called neurons misfire, it can cause a seizure. The neurons send  abnormal signals to other neurons.

Absence seizures are a type of epilepsy that is most common in children. it is characterized by a blank or absent stare.

Achilles tendon injuries affect the Achilles tendon, a fibrous band of tissue that links the muscles in your calf to your heel.

Achilles tendon repair surgery is a type of surgery to fix a damaged Achilles tendon. This is the strong, fibrous cord in the lower leg that connects the muscles of your calf to your heel.

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