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Vanderbilt Pathology Laboratory Services

Test Directory



GLUCOSE TOLERANCE 50 G (SCREENING) FOR GESTATIONAL DIABETES (GT5)

Department: Chemistry
Test Synonym(s): GT5
CPT Codes: 82950
Methodology: Colorimetric
Reference Range: 0-150 yrs: 0-139 mg/dL
Tube Type: Grey top - 5 mL, Performed following 50 g Glucola ingestion. No fasting required.
Specimen: Blood
Pediatric Requirements: 2 microtainers
Volume: 3 mL plasma
Minimum Volume: 0.7 mL plasma
Days Performed: Daily
Times Performed: Continuous
Significance: Diagnostic of Gestational Diabetes
Special Instructions: Must show collection time. Draw serum Glucose 60 minutes after ingestion of 50g Glucose.

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