Collection Notes: Fasting specimen is preferred. Uncentrifuged gel-barrier collection tubes are not acceptable. Avoid hemolysis.
Clinical Utility: Glucose levels are used for the diagnosis and treatment of carbohydrate metabolic disorders.
Serum (1 mL)
Ambient 8 Hours
Refrigerated 6 Days
Frozen >72 Hours
Lithium heparin plasma (1mL)
Ambient 8 Hours
Refrigerated 6 Days
Frozen >72 Hours
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