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Glucose Challenge Screening Test (Glucose level one hour post ingestion)

Mnemonic:    [Gluc Chal]
Name:    Glucose Challenge Screening Test (Glucose level one hour post ingestion)
Specimen:    1 mL serum from a Red SST or Red top tube, or plasma from a Green PST. Deliver to the lab immediately or centrifuge the sample within one hour of collection.

If not collected in a serum separator tube (SST), the serum/plasma must be placed in a separate, correctly labeled sample tube.
Transport Temp:    Refrigerated
Reference Range:    1 Hour glucose: <=140 mg/dL
  Method:    Colorimetric; Glucose Oxidase
Note:    Collected 1 hour after 50 gm dose of glucose.

Detailed collection instructions