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Glucose Tolerance, 3 Hr [ACOG-GDM]

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) Plasma . Submit Refrigerated. Submit in a Standard Transport Tube.
  • Four 1 mL (Min:0.5 mL) Serum in SST. Submit Refrigerated.

Special Handling

  • Draw fasting specimen, then give 100gm 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

Stability

Ambient: 1 Day(s); Refrigerated: 3 Day(s); Frozen: Unacceptable; Incubated: Unacceptable

Methodology

  • Colorimetric
  • Kinetic

Performed

Mon-Fri

Reported

1-3 Day(s)

CPT Codes

  • 82951
  • 82952

Interpretive Data

Please see report for interpretive data.

Components

  • 2431 - GLUCOSE, FASTING
  • 2432 - GLUCOSE, 1 HR
  • 2433 - GLUCOSE, 2 HR
  • 2434 - GLUCOSE, 3 HR
Last Updated: October 10, 2024 @ 9:13 am

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