3 Hr Glucose Tolerance (Gest) 3 Hr Glucose Tolerance (Gest)

Synonyms
Allscripts (AEHR) Order Name	Not Orderable
Sunrise Clinical Manager (SCM) Order Name	Glucose Tolerance, 3 Hour, Gestational
EPIC Order Name	100g Gestational Glucose Tolerance Test (Fasting, 1, 2, 3 hours)
Clinical Info
Specimen Type	Blood
Container	Grey-top (potassiumoxalate/sodium fluoride) tubes. Note: This test requires 4 separate tubes collected at fasting, 1 hour, 2 hours, and 3 hours post glucose load.
Collection Instructions	1. Patient should be instructed to fast for at least eight hours prior to collection of specimens. 2. Patient should be instructed to refrain from smoking and drinking coffee just before and during test. 3. Draw blood specimen for a fasting glucose. 4. After drawing fasting specimen, give the patient a 100 g dose of Glucola (patient must drink entire beverage within 5 minutes). 5. Draw blood specimens at 1 hour, 2 hours and 3 hours post Glucola ingestion. Note: Label specimens appropriately (fasting, 1 hour, 2 hour, and 3 hour).
Transport Instructions	Refrigerate
Specimen Stability
Methodology	Enzymatic
Days Performed	Monday through Sunday
Performing Laboratory	Northwell Core Lab at CFAM
CPT	82951 ;
PDM	5300462
Result Interpretation ADA diagnostic criteria for gestational diabetes mellitus following 100-g glucose load test: Fasting: 70 - 94 mg/dL 1 Hour: 70 - 179 mg./dL 2 Hour: 70 - 154 mg/dL 3 Hour: 70 - 139 mg.dL Diabetes Care 2023;46(Suppl. 1):S19–S40 https://doi.org/10.2337/dc23-S002
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Synonyms