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Test Code GLU Glucose Nonfasting LAB2474

Test Method

Timed Endpoint; Beckman DXC600

Specimen Requirement

0.5 mL serum or plasma is required.

Reference Values

Newborn (whole blood or plasma):

Non-fasting: A reference range for
non-fasting glucose has not been established for this age
group.

1 Month to Adult (serum, plasma or whole
blood): Non-fasting 70 – 140 mg/dL

Critical values:

Adult:

  • Low: < 50 mg/dL
  • High: > 450 mg/dL

Infant 0-1 month:

  • Low: < 40 mg/dL
  • High: > 300 mg/dL

Performance

Testing is performed Monday through Sunday.

Routine orders: Typically completed within 4 hours after
the specimen arrives at the testing site.

Expedite: Typically completed within 1 hour after the
specimen arrives at the testing site.

STAT: Typically completed within 30 minutes after the specimen
arrives at the testing site.

CPT Code Information

82947 Chemistry: Glucose Testing Glucose;
quantitative, blood (except reagent strip)

LOINC Code Information

2345-7 Glucose [Mass/Volume] In Serum Or Plasma

Useful For

Diagnosing and managing diabetes mellitus and other carbohydrate
metabolism disorders including gestational diabetes, neonatal
hypoglycemia, idiopathic hypoglycemia, and pancreatic islet cell
carcinoma

Additional Specimen Collection Information

Collect blood in a lithium heparin, green-top or red-top tube.
PST and SST (gel tubes) are acceptable. Serum or plasma should be
separated from contact with the cells within 2 hours of collection.
Specimens not centrifuged within 4 hours of collection may be
rejected. Refrigerate the specimen if unable to assay within 8
hours of collection. Hemolyzed specimens are not acceptable.
Samples with ≥3+ lipemia must be cleared prior to
analysis.