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Test Code GTT Glucose Tolerance Testing

Important Note

NOTE: If the serum / plasma and cells are not separated, in vitro glycolosis will decrease glucose levels by 5 - 7% per hour.

Specimen Information

Obtain specimen using standard phlebotomy techniques.

No special patient preparation is necessary.

 

Container Specimen Temperature Collect Vol Submit Vol Min Vol Stability
SST Serum Refrigerate 4.0 mL 1.0 mL 0.6 mL 7 days
Lithium Heparin Plasma Refrigerate 4.0 mL 1.0 mL 0.6 mL 7 days

Reject Due To:

- Moderate or Marked Hemolysis

- Specimen unlabeled or mislabeled

Instrumentation / Method

Ortho Vitros XT 7600 / Colorimetric

Test Schedule / Analytical Time / Test Priority

Daily / Same Day / Not Available STAT

Reference Range

70 - 100 mg/dL

 

Critital Value:

<50 or >500 mg/dL

 

 

CPT / LOINC / Order Code

Meditech Medent LOINC CPT
GLUS GLUS 2345-7 82947