Item Value
Test name 2 Hour, 75 gram Glucose Tolerance Test, Pregnancy
Available Stat? No
In House Availability Test available 24 hours per day 7 days per week
Performed by Parnassus, Mission Bay & Mt. Zion Chemistry
Patient Preparation The patient should be instructed by the care-giver to eat a normal diet containing at least 150 g of carbohydrate per day and carry out normal physical activity for at least 3 days prior to the morning of the test. An 8-10 hour fast is required before initial baseline sample collection.
Normal range
Fasting 70-91 mg/dL
1 hour (post glucose) < 180 mg/dL
2 hour (post glucose) < 153 mg/dL
Container type Gray top
Amount to Collect 1 mL blood Click here for Microdetermination info
Collection Instructions Outpatient testing at ACC available 0730-1400 weekdays, Mission Bay from 0700-1400 and at 2330 Post St. 0800-1400 weekdays.

The patient should be seated for the test and should not smoke.

Collect all samples in Gray top tubes

Obtain a fasting sample and send to lab for stat glucose testing. The glucose load should not be given and the test aborted if the fasting glucose value is ≥ 92 mg/dL (in accordance with the recommendations of the UCSF Diabetes and Pregnancy program and the IADPSG guidelines). If the test is aborted due to an elevated fasting glucose, refer the patient back to the Diabetes Clinic.
Sample type Serum

If you have additional questions regarding this test, please call: 415-353-1667