Glucose 1 Hour Screening Test OB Patients Only

Note: Patient is given a 50 gram dose of Glucola. 1 hour later collect 2 mL GRAY TOP tube.

HMC, UW-MT, and UW-NW Onsite Locations:

Preferred: 2 mL blood in GRAY TOP tube

Also Acceptable If Delivered To Lab Immediately: 4 mL blood in ORANGE RST, GOLD SST, LIME GREEN PST, RED TOP or GREEN TOP tube

Offsite Clinic or Other Locations:

Preferred: 2 mL blood in GRAY TOP tube

Also Acceptable If Delivered To Lab Immediately: 4 mL blood in ORANGE RST, GOLD SST, LIME GREEN PST, RED TOP or GREEN TOP tube

This test should be ordered on OB patients only.
Refrigerate plasma

Note: Plasma or serum collected in green, gold or red top tubes 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.