| Ordering Code | 181 |
|---|---|
| Test Name | GTT - 3-Hour, Pregnancy |
| Alias | 3 Hour Glucose Tolerance Pregnancy Glucose Tolerance Test - 3 Hour Pregnancy, 3 Hr Pregnancy GTT |
| Preferred Specimen | Serum Note: If specimen cannot be properly processed within 1 hour of collection, collect blood in Oxalate/Fluoride (Gray). |
| Preferred Container | 1 NONE (No specimen required) 2 SS (Serum/Separator - Red/Grey or Gold) |
| Optimum Volume | 1 mL |
| Collection Instructions | Draw a fasting blood sugar before administering 100-gram glucose, and draw blood at one, two, and three hour intervals. Label each tube with patient's name, secondary identifier, and collection time interval (i.e. fasting, one-hour, two-hour, and three-hour). |
| Handling Instructions | If specimen cannot be properly processed within 1 hour of collection, collect blood in Sodium Fluoride-Potassium Oxalate (Gray) All specimen types must be centrifuged within 2 hours of collection. If no gel separation present in tube and testing is delayed, plasma/serum is aliquoted from cells within 2 hours of collection. |
| Transport Requirements | Oahu: Refrigerated Airline: Refrigerated International: Frozen |
| Specimen Stability | Ambient: 8 Hours Refrigerated: 3 Days Oahu: Refrigerated Frozen samples should be thawed only once Unprocessed Sodium Fluoride-Potassium Oxalate (Gray) blood is stable 3 days ambient. |
| Avail. Stat | NO |
| Analytic Time | 1 Day |
