Specialty: Lab Tests

Tests and Procedures: G

  • Galactosemia

    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.

  • Gastrin

    This test measures the amount of the hormone gastrin in your blood. You may need this test if you have recurrent peptic ulcers.

  • 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.

  • Giardia Antigen (Stool)

    This is a stool sample test to look for the parasite Giardia intestinalis, which causes an infection of the small bowel called giardiasis or travelers’ diarrhea.

  • Glomerular Filtration Rate

    This test looks for changes in how well your kidneys are working. This is especially important if you have diabetes or high blood pressure.

  • Glucose (Blood)

    A blood glucose test tells you whether your level of glucose is within a healthy range. Fasting plasma glucose is a common test for diagnosing diabetes.

  • Glucose (Cerebrospinal Fluid) 

    This test measures the amount of glucose in the fluid that surrounds your brain and spinal cord. If you have a serious infection, your glucose level may be lower than normal.

  • Glucose (Urine)

    This test is used to indirectly find out if your levels of glucose–blood sugar–are within a healthy range. It's used to monitor both type 1 and type 2 diabetes.

  • Glucose Tolerance

    This test is used to screen for prediabetes or diabetes. For the test, you drink a sweet beverage and then have your blood drawn several times over the next few hours.

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