Test Overview
Test Methodology

Hexokinase, NADH Endpoint

Test Usage

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

Reference Range *

1 Hr Postprandial: 50 gm load: <135 mg/dL, 100 gm load: <190 mg/dL

Test Details
Days Set Up
Daily, 24 hours
Analytic Time

2 hours

Soft Order Code
GLU1P
MiChart Code
Glucose, One Hour Postprandial
Synonyms
  • Gestational Diabetes Screen
  • Glucose, 1 Hr Postprandial
  • GLU1P
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 50 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 1 hour 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 (1 HR PP).

Yellow Top Tube
Normal Volume
0.5 mL serum
Minimum Volume
0.25 mL serum
Billing
CPT Code
82950
Fee Code
22141
NY State Approved
No