Diagnostic Test Directory

Clinical Chemistry Laboratory

Glucose Tolerance Test

  • Synonyms: GTT
  • LIS Mnemonic: GTT

    Collect

    Gray (Potassium oxalate/Sodium fluoride)

    Volume Required

    0.5 mL

    Minimum Required

    0.2 mL

    Transport

    Room temperature

    Stability

    24 hrs room temperature, 5days refrig

    Processing

    Spin for 10 min at 3400 RPM

Days Performed

24/7

Reported

Stat: 45 Min. Routine: 90 Minutes

Reflex Testing

N/A

CPT

82947

Methodology

Colorimetric

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