Glucose Tolerance Test
- Synonyms: GTT
- LIS Mnemonic: GTT
Collect
Gray (Potassium oxalate/Sodium fluoride)
Volume Required
0.5 mL
Minimum Required
0.2 mL
Transport
Room temperature
Stability
24 hrs room temperature, 5days refrig
Processing
Spin for 10 min at 3400 RPM
Days Performed
24/7
Reported
Stat: 45 Min. Routine: 90 Minutes
Reflex Testing
N/A
CPT
82947
Methodology
Colorimetric
Remarks
Contact Endocrine clinic for test scheduling and collection.Patient should fast 12 hrs prior to the 75 g glucose dose. Collect specimens in grey top (floride) tubes. Send all specimens at the same time. Indicate collection time on each tube.
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