CRS - Overview: Chromium, Serum

Screening for occupational exposure Monitoring metallic prosthetic implant wear

FENTU - Overview: Fentanyl with Metabolite Confirmation, Random, Urine

Detection and confirmation of illicit drug use involving fentanyl

FGFRC - Overview: Fibroblast Growth Factor Receptor 1, Immunostain, Technical Component Only

Classification of a subset of lung squamous cell carcinoma

CRU - Overview: Chromium, 24 Hour, Urine

Screening for occupational exposure to chromium Monitoring metallic prosthetic implant wear

ERG - Overview: ERG Immunostain, Technical Component Only

Identification of erythroblast transformation specific (ETS)-related gene (ERG) protein expression

GBM - Overview: Glomerular Basement Membrane Antibodies, IgG, Serum

Evaluating patients with clinical features of anti-glomerular basement disease, including rapidly progressive glomerulonephritis or pulmonary hemorrhage

GATAB - Overview: GATA-Binding Protein 3 Immunostain, Technical Component Only, Bone Marrow,

Characterizing carcinomas, including primary bladder and breast carcinomas, and some types of mesenchymal and neuroectodermal tumors

GLUT - Overview: GLUT-1 Immunostain, Technical Component Only

Identification of erythrocytes in various normal and neoplastic tissues

GLYP3 - Overview: Glypican-3 Immunostain, Technical Component Only

Differentiating hepatocellular carcinomas from other malignancies and hepatic adenomas

GDCU - Overview: Gadolinium/Creatinine Ratio, Urine

Measurement of gadolinium concentration for assessing chronic exposure and monitoring effectiveness of dialysis using a random urine collection