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Glucose

3012

cpt

normal turn-around time

assays included

specimen type

minimum required

GLU

82947

24 hours

GLU

Serum, Plasma or Whole Blood (non-fasting)

1 mL of serum or heparinized plasma; 1 mL Urine

collection instructions

  • Collect blood in a fluoride/oxalate tube for accurate glucose measurement.

  • Collect blood in a serum separating tube, Lithium heparin, Sodium heparin or EDTA tube.

  • Mix the tube gently to ensure proper mixing of the preservatives.

  • Label the specimen with at least two patient identifiers.

  • Transport the specimen at 2-8°C if not tested immediately to prevent glycolysis (breakdown of glucose).

collection instructions

  • Hemolysis: Red blood cell destruction can falsely increase glucose levels.

  • Improper Labeling: Specimen must be labeled with at least two patient identifiers.

  • Clotted Specimen: Coagulated blood may interfere with glucose measurement in serum or plasma.

  • Insufficient Quantity: Volume less than 1 mL may not be sufficient for accurate testing.

  • Lipemia: Excessive fat in the blood can interfere with certain test results.

clinical significance

The Glucose test measures the concentration of glucose in the blood, which is a critical source of energy for the body's cells. It is used to diagnose and monitor diabetes mellitus, hypoglycemia (low blood sugar), and other glucose metabolism disorders. Abnormal glucose levels can indicate metabolic disorders, pancreatic diseases, hormonal imbalances, and other health conditions.

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