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OB Glucose Tolerance, 3 hour
MessageOB Tolerance Fasting (CPT 82947) must be ordered with this test. See Additional Information below for test code link.
Test Code
OBT3
CPT Codes
82951
Includes
- OB Tolerance 1 Hour
- OB Tolerance 2 Hour
- OB Tolerance 3 Hour
Preferred Specimen
Serum Separator (Gold/Yellow) Tube
Minimum Volume
1 mL per collection
Other Acceptable Specimens
Lithium Heparin Plasma Separator (Light Green) Tube
Instructions
Fasting Required
Separate/spin within 2 hours.
Separate/spin within 2 hours.
Transport Temperature
Refrigerated
Specimen Stability
Room Temperature: 8 hours
Refrigerated: 3 days
Frozen: Unacceptable
Refrigerated: 3 days
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Grossly hemolyzed, Grossly lipemic
Reference Range
Criteria for the Diagnosis of Gestational Diabetes mellitus
(100 gm Glucose dose)
Fasting: >= 95 mg/dl
1 hr: >= 180 mg/dl
2 hr: >= 153 mg/dl
3 hr: >= 140 mg/dl
Reference: Diabetes ACOG Practice Bulletin, No. 30. American College of Obstetricians and Gynecologists. Obstet Gynecol; 98: 525-38.
(100 gm Glucose dose)
Fasting: >= 95 mg/dl
1 hr: >= 180 mg/dl
2 hr: >= 153 mg/dl
3 hr: >= 140 mg/dl
Reference: Diabetes ACOG Practice Bulletin, No. 30. American College of Obstetricians and Gynecologists. Obstet Gynecol; 98: 525-38.
Performing Laboratory
This test is performed at the following locations:
- MercyOne Siouxland Medical Laboratory
- MercyOne Dakota Dunes Medical Laboratory
Additional Information
Fasting Glucose, OB Tolerance
Last Updated: September 16, 2022
