Laboratory Test Detail

Last Updated: April 25, 2024 @ 9:13 am

2023

Glucose Tolerance 3 HR

Specimen:Collect:
  • One Gray Top (1HR)
  • One Gray Top (2HR)
  • One Gray Top (3HR)
  • One Gray Top (FAST)

Also Acceptable:
  • One SST (1HR)
  • One SST (2HR)
  • One SST (3HR)
  • One SST (FAST)
Submit:
  • Four 4 mL (Min:1 mL) Whole blood in Gray Top. Submit Refrigerated.

Also Acceptable:
  • Four 1 mL (Min:0.5 mL) Serum in SST. Submit Refrigerated.
  • Four 1 mL (Min:0.5 mL) Plasma . Submit Refrigerated. Submit in a Standard Transport Tube.
Special Handling:
  • Draw fasting specimen, then give 75gm glucola. At 1 hour draw "1 HR" post sample. At 2 hour draw "2 HR" post sample At 3 hour draw "3 HR" post sample.
    Label tubes "Fasting", "1 HR", "2 HR" and "3 HR".

    Other alternative samples:
    Green Top (Li Hep), Lavender EDTA, Pink EDTA, Red Top.
    If using alternative serum or plasma separate from cells ASAP.
    Serum or plasma stability: Ambient 8 hrs, RF 3 days, FZ 1 month
Rejection Criteria:
  • Hemolyzed specimens
  • Microbially Contaminated
  • Unlabled Specimens
Stability:Ambient: 1 Day(s); Refrigerated: 3 Day(s); Frozen: Unacceptable; Incubated: Unacceptable
Methodology:
  • Colorimetric
Performed:Mon-Fri
Reported:1-3 Day(s)
CPT Codes:
  • 82951
  • 82952
Interpretive Data:Please see report for interpretive data.

Criteria for the diagnosis of diabetes mellitus: 2 hour postload glucose of 200 mg/dl or greater using a 75g glucose load. ADA 2005
Note: Glucose tolerance reference range changes as of 2/18/2020
Components:
  • 10201 - GLUCOSE, FASTING
  • 10206 - GLUCOSE, 1HR
  • 10202 - GLUCOSE, 2HR
  • 10207 - GLUCOSE, 3HR
Print Friendly, PDF & Email

Disclaimer:
It is preferable to locate tests on the website and not rely on printed test information, which may soon be out of date.
Updated test information can only be guaranteed by using this website.