Health Library

Tests and Procedures

 Page 1 of 3, items 1 to 10 of 24.
Gallbladder Scan
A gallbladder scan is an imaging test to look at your gallbladder and see how well it is working.  This test may also be called a liver-biliary scan because the doctor often looks at the liver at the same time. The liver is near the gallbladder and works closely with it.
Gastric Bypass (Malabsorptive) Surgery Procedure
Gastric bypass surgery, a type of bariatric surgery (weight loss surgery), is a procedure that alters the process of digestion. Bariatric surgery is the only option today that effectively treats morbid obesity in people for whom more conservative measures such as diet, exercise, and medication have not been effective.
Gastric Stapling (Restrictive) Surgery Procedure
Gastric stapling (restrictive) surgery is a type of bariatric surgery (weight loss surgery) procedure in which surgical staples are used to divide the stomach into two smaller sections, strictly limiting the amount of food a person can eat.
Gastric Banding Surgery for Teens
Gastric banding is a form of bariatric surgery. It is used to treat people with severe obesity who have trouble losing weight through diet or exercise alone.
Gamma Knife Radiosurgery
Gamma Knife uses very precise beams of gamma rays to treat an area of disease (lesion) or growth (tumor). It’s most often used in the brain.
Gene Mutation for Cystic Fibrosis in Newborns (Blood)
This test looks for cystic fibrosis in newborn babies. People with CF tend to develop chronic lung disease and are at risk for lung infections.
Glucose-6-Phosphate Dehydrogenase
This test finds out whether you have low levels of a particular enzyme that can cause hemolytic anemia.
This test looks for enzyme activity in the red blood cells in your child’s blood. It can help diagnose galactosemia, a rare inherited disorder.
Gamma-Glutamyl Transpeptidase
This test looks for an enzyme called gamma-glutamyl transpeptidase in your blood. The test can help find out whether you have liver damage.
This test measures the amount of the hormone gastrin in your blood. You may need this test if you have recurrent peptic ulcers.

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