G6PD QUANTITATIVE - SGH GAD AUTOANTIBODY - SGH GALACTOSE 1 PO4 URIDY TRANSFER - KKH Gamma-Glutamyltransferase GANGLIOSIDE ANTIBODIES PANEL IGG - NNI GANGLIOSIDE ANTIBODIES PANEL IGM - NNI Garlic - AMDL GASTRIN - NUH GASTROINTESTINAL (GI) PANEL PCR - SGH Gastrointestinal Panel PCR - FilmArray Gelatin bovine - AMDL GENE XPERT MTB_RIF ASSAY - TTSH General Follow-Up Screen Gentamicin Peak (Post) Gentamicin Trough (Pre) Gerbil epithelium - AMDL Ginger - AMDL Gliadin - AMDL Globulin GLOMENULAR FLITRATION RATE - SGH Glucose Tolerance Test Glucose Tolerance Test (2 specimens-blood only) Glucose, 2hr Post Prandial Glucose, Fasting Glucose, Random, non-fasting Glucose-6-Phosphate-Dehydrogenase, Screening (G6PD Screening) Gluten - AMDL Glycated Hb Glycyphagus domesticus (Storage mite) - AMDL Goat epithelium - AMDL Goat milk - AMDL Gonorrhoea, Monilia & Trichomonas & Gram Stain Gonorrhoea, Monilia & Trichomonas, Gram Stain & Mycoplasma Gonorrhoea, Monilia & Trichomonas, Mycoplasma, Urine FEME, Bacterial Culture & Urine Culture Goose feathers - AMDL Gram Stain Grape - AMDL Grapefruit - AMDL Green nimitti Green pepper (unripe seed) - AMDL Greenbean - AMDL Greer Labs.Inc. - AMDL Growth Hormone GROWTH HORMONE - NUH Guar, guar gum (E412) - AMDL Guava Guinea pig epithelium - AMDL Gulf flounder - AMDL Gum arabic (E414) - AMDL