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GLUCOSE TOLERANCE, 2 HR/75g (GTT2)
MessagePatient should fast overnight.
Test Code
84525
Alias/See Also
GTT2
CPT Codes
82947
Preferred Specimen
0.5 mL plasma
Instructions
Specimen is collected prior to administration of 75 g oral glucose beverage (fasting) and then 2 hours after beverage is consumed by patient. Note: Glucose dosage may be different for pediatric or pregnant patients. This dosage is for patients at least 17 years of age.
Transport Container
Preferred: Light green top; Acceptable: Gold top, Grey top
Transport Temperature
Refrigerated
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Fasting blood sugar (FBS) >200 mg/dL