Glucose Tolerance, Gestational (GTT G3HR)
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| Synonyms:
| None listed |
| Specimen: | Blood; (1) SST (serum separator), Red (no preservative), Green (lithium heparin) or Gray (sodium fluoride and potassium oxalate) top vacutainer tube.
A fasting glucose is drawn and analyzed. If the fasting glucose does not exceed 140 mg/dL, a 100 gram glucose drink is administered. |
| Volume: | Full primary tube for each collection |
| Minimum Volume: | 100 microL of serum/plasma or microtainer |
| Collection: | After ingestion of the drink, samples are drawn at the timed intervals; 1 hour, 2 hours and 3 hours.
Separate serum form cells as soon as possible. Transfer serum or plasma to a tightly capped plastic aliquot tube within 2 hours of collection for transport.
Refrigerate at 2-8°C for 7 days. |
| Rejection Criteria: | Gross hemolysis; improper labeling. |
| Reference Range: | See Pathology Interpretive Report. |
| Methodology: | |
| Test Use: | Aid in diagnosis of gestational diabetes. |
| Additional Information: | No Additional Information Listed |
| Testing Includes: | Fasting glucose,
100 gram glucose drink.
1, 2, 3 hour glucose post drink. |
| Testing Facility: | AnMed Laboratory |