Specimen:
Collect
- One Gray Top (1HR)
Also Acceptable:
- One SST (1HR)
Submit
- One 4 mL (Min:1 mL) Whole blood in Gray Top. Submit Refrigerated.
Also Acceptable:
- One 1 mL (Min:0.5 mL) Serum in SST. Submit Refrigerated.
- One 1 mL (Min:0.5 mL) Plasma . Submit Refrigerated. Submit in a Standard Transport Tube.
Special Handling
- Give 50 gm of glucola and wait 1 hour then draw specimen.
Patient does not need to be fasting. However, once glucola is administered they should not have anything else to eat or drink (except water) until the 1 hour sample is drawn.
Other alternative samples:
Green Top (Li Hep), Lavender EDTA, Pink EDTA, Red Top.
If using alternative serum or plasma separate from cells ASAP.
Stability for serum or plasma: Ambient 8 hrs, RF 3 days, FZ 1 month.
Rejection Criteria
- Frozen whole blood
- Hemolyzed specimens
- Microbially Contaminated
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
- 82950
Interpretive Data
General Reference Range : <130 mg/dL
One-hour glucose values >140 mg/dL identify approximately 79% of women with Gestational Diabetes Mellitus (GDM), while one-hour glucose values >130 mg/dL identify approximately 93% of women with GDM. Recommend patients above the cutoff undergo a 3-hr glucose tolerance test for confirmation.
Note: Reference range change as of 01/21/2025.
One-hour glucose values >140 mg/dL identify approximately 79% of women with Gestational Diabetes Mellitus (GDM), while one-hour glucose values >130 mg/dL identify approximately 93% of women with GDM. Recommend patients above the cutoff undergo a 3-hr glucose tolerance test for confirmation.
Note: Reference range change as of 01/21/2025.
Components
- 2093 - GEST DM SCRN
Last Updated: May 11, 2025 @ 9:13 am
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