Glucose, Two-Hour Postprandial

CERNER / EPIC MNEMONIC: GLU-PP
POE DESCRIPTION: GLUCOSE POSTPRANDIAL 2 HR; GLU-PP; 2 HR PP
CPT CODE: 82947
DAYS PERFORMED: Specimen accepted daily, 24 hours
TURNAROUND TIME: Routine 8 hours; Stat or CSF 1 hour
SPECIAL INSTRUCTIONS: See Patient Instructions for Glucose Tolerance Test. The patient is given orally a 75 gram solution of glucose or allowed an adequate meal which must be completed within 15-20 minutes. Two hours later, the patient's blood is drawn for a glucose assay.
CONTAINER TYPE: Gray top (sodium fluoride) tube
SPECIMEN REQUIREMENTS: Blood (plasma)
MINIMUM VOLUME: 2 mL blood (1 mL plasma)
REFERENCE RANGE: Interpretive information (2 hours after 75g glucose challenge):

<140 mg/dL - Normal </p/>

140-199 mg/dL - Potentially indicative of impaired glucose tolerance (IGT). Requires confirmation on second occasion.

> 200 mg/dL - Potentially indicative of diabetes mellitus. In absence of symptoms of unequivocal hyperglycemia, requires confirmation on second occasion.

Reference: Diabetes Care, 3 0(Supp.), S42-S47 (2007)

CRITICAL VALUES: <40, >500
TEST SYNONYM(S):PP, 2-hour; PP Glucose, Two-Hour