Gestational Diabetes Screen

Specimen:

Test Code

GD0

Specimen Name

Gestational Diabetes Screen

Collect

1-SST Also acceptable Lithium-Heparin

Submit

1 mL (Min: 0.5 mL) Serum or Plasma Refrigerated

Special Handling

Specimen must be completely spun with in one hour of collection. If no gel seperator serum or plasma must be removed from cells and stored in a specimen transport tube.

Rejection Criteria

Grossly hemolyzed, lipemic, icteric specimens

Stability

Refrigerated 3 days

Methodology

Enzymatic Hexokinase Method

Performed

Sunday - Saturday

Reported

1-2 days

CPT Codes

  • 82950

Components

Additional Information

Only the one hour post-dose is collected. The patient must remain in the laboratory for the duration of the test. Water is permitted during testing. Glucose Dose: 50 grams. One-hour glucose levels above 140 mg/dL following a 50 gram glucose challenge are considered "positive" screens, indicating the need for followup with a Gestational Glucose Tolerance Test to better evaluate the possibility of gestational diabetes

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Common Lab Definitions

  • Serum 
  • Plasma 
  • STT