2 Hour Glucose Tolerance test, OB Patient 1 Hour
General Information
- Lab Name
- GTT (2hr), OB 1 Hour
- Lab Code
- OB2GT1
- Epic Ordering
- GTT (2hr), OB 1 Hour
- Description
- This test should be ordered only on OB patients after a 75 g dose of Glucola. The reference range applies to this patient group only. Diabetes Care 2016 39: S13-S22
- Synonyms
- Components
-
Code Name OBSTIM OB GTT Stimulation Interval OBGT21 GTT (2hr), OB 1 Hour Level
Interpretation
- Method
- Spectrophotometric
- Reference Range
- See individual components
Ordering & Collection
- Specimen Type
- Blood
- Collection
-
All Locations:
Preferred: 2 mL blood in GRAY TOP tube
Also Acceptable: 4 mL blood in ORANGE RST, LIME GREEN PST, GOLD SST, RED TOP or GREEN TOP tube
Note: Deliver to lab immediately - Handling Instructions
- Quantity
-
requested: 1 mL plasma
minimum: 0.2 mL plasma
Processing
- Processing
- This test should be ordered on OB patients only.
Note: Plasma or serum collected in green, gold or red top tubes for fasting glucose should be separated from the cells within 1 hr and stored refrigerated. Glucose in such specimens is stable up to 16 hr after collection. Glucose specimens collected in gray top tubes are stable up to 24 hr without separation or refrigeration.
Performance
- LIS Dept Code
- Chemistry, Automated Panels (CHA)
- Performing Location(s)
-
HMC Chemistry, Automated
206-520-4600325 9th Ave, Rm # GWH-47, Seattle, WA 98104-2420
UW-NW Main Lab
206-668-1344UW Medical Center – Northwest
1550 N 115th Street, A200
Seattle, WA 98133FHCC Fred Hutch Alliance Lab
206-606-1088825 Eastlake Ave, Seattle, WA 98109
UW-MT Chemistry, Automated
206-520-4600Clinical Lab, Room NW220,
University of Washington Medical Center,
1959 NE Pacific street, Seattle, WA 98195 - Frequency
- Daily
- Available STAT?
- Yes
Billing & Coding
- CPT codes
- 82950
- LOINC
- 1507-3