Test Code GTT2 2 Hour Glucose Tolerance
Specimen Requirements
Container/Tube: Grey-top (potassium oxalate/sodium fluoride) tube(s)
Specimen Volume: 1 mL of plasma for each timed interval
Collection Instructions: Patient should be fasting at least 8 hours or an overnight (12-14 hour) fast. Collect specimen as follows:
1. Draw blood specimen for a fasting glucose.
2. After fasting specimen draw, give patient a 100 g dose of GlucolaTM (patient must drink entire beverage within 5 minutes).
3. Draw blood at hourly intervals until desired length of procedure is completed.
Note: Label specimens appropriately (include corresponding draw times).
Specimen Transport Temperature
Ambient
Performing Laboratory
The Valley Hospital