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HOUR 1, GLUCOSE TOLERANCE SPECIMEN
MessageDraw the second sample one (1) hour after ingestion of oral glucose and Document collection time on the label. For 2 hour Glucose Tolerance Collection - Administer 75 grams of oral glucose solution. Ingestion should be completed within five(5) minutes.
Test Code
LAB16563 G01
Alias/See Also
G01
CPT Codes
82951| 82950
Includes
Patient should be fasting for at least eight (8) hours before test and no longer than sixteen (16) hours. Patient cannot eat or drink during test, but water is permitted before and during the test.Cigarette smoking will affect results and should be avoided.IMPORTANT:2 hour Glucose Tolerance Test - Administer 75 grams of oral glucose solution. Ingestion should be completed within five(5) minutes.3 hour Glucose Tolerance Test- Administer 100 grams of oral glucose solution. Ingestion should be completed within five(5) minutes.
Instructions
Processing Instructions (Lab use only): Centrifuge and separate cells after clot formation and within 4 hours of collection. Minimum Testing Volume: 0.1 mL Serum or Plasma Transport Temperature: Refrigerated Stability: Ambient: 2 daysRefrigerated : 7 daysFrozen: 1 year Causes for Rejection: Unlabeled, mislabeled, wrong tube type, QNS, hemolyzed.
Clinical Significance
1230130321
Last Updated: May 18, 2026
