Orderable EAP code:

LAB00088

Billable EAP Codes:

80001746 x1 (0,1,2 HR) 80001747 x1 (3 HR)

CPT Codes:

82951 (0,1,2 HR) 82952 (3 HR)

Lab Section:

Core Lab

Turnaround Time:

Routine: 2 Hours
Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week. 

Units:

mg/dL

Critical Values:

<54 mg/dL, >500 mg/dL

Specimen Requirements:

2 mL blood in a GRAY top tube. 

Ship and Store 15-25 °C for up to 72 hours

Reference Range:

Fasting:  <96 mg/dL
1 Hour: <180 mg/dL
2 Hour: <155 mg/dL
3 Hour: <140 mg/dL

Comments:

100 gram oral glucose load. The patient must fast a minimum of 8 hours before the test.

Synonyms:

GTT
Glucose Tolerance