Gabapentin

GAD (Glutamate-Decarboxylase)

Galactose in blood

gamma-Hexachlorocyclohexane Lindane, gammaxene, Gammallin, insectizide

Gastrin

Gentamicin

GGT (gamma-GT)

Gliadin IgA

Gliadin IgG

Gliadin-antibody in feces (IgA) Gliadin-scIgA-Ab

Glucagon

Glucose in blood

Glucose in CSF

Glucose in dialysate

Glucose in urine

Glutamat-Dehydrogenase (GLDH)

Gold

GOT (AST)

GPT (ALT)

Growth hormone (hGH, STH)