Test Overview
Test Methodology

Hexokinase, NADH Endpoint

Test Usage

Determine glucose level, monitor insulin therapy, evaluate carbohydrate metabolism.

Reference Range *

2 Hr Postprandial: (75 gm load): Normal <140 mg/dL, Impaired 140 - 200 mg/dL, Provisional Diagnosis >200 mg/dL.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Daily, 24 hours
Analytic Time

2 hours

Soft Order Code
GLU2P
MiChart Code
Glucose, Two Hour Postprandial
Synonyms
  • Glucose, 2 Hr Postprandial
  • GLU2P
Laboratory
Chemical Pathology
Section
Automation
STAT Availability

STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).

Specimen Requirements
Collection Instructions

Administer 75 gm Glucola. Instruct patient to finish drinking the Glucola within 5 minutes of the time he or she starts drinking and not to eat anything except a few sips of water after finishing the Glucola. Collect blood in an SST tube exactly 2 hours after the patient finished drinking the Glucola. Centrifuge within 4 hours of collection, aliquot serum into a plastic vial and refrigerate. If specimen cannot be centrifuged at client site, please arrange for delivery to MLabs within 3 hours of specimen collection. Label vial appropriately (2 HR PP).

Normal Volume
0.5 mL serum
Minimum Volume
0.25 mL serum
Billing
CPT Code
82950
Fee Code
22141