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Test Code GLUR1 Glucose, Random, Urine


Specimen Required


Container/Tube: Plastic urine container

Specimen Volume: 20 mL

Collection Instructions:

1. Collect a random urine specimen.

2. No preservative.


Secondary ID

609796

Useful For

Limited usefulness for routine screening or management of diabetes mellitus

Method Name

Reflectance Spectrophotometry

Reporting Name

Glucose, Random, U

Specimen Type

Urine

Specimen Minimum Volume

2 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Urine Refrigerated (preferred) 72 hours
  Ambient  2 hours

Reject Due To

Preservative added
Any sample other than a random urine		 Reject

Clinical Information

The test is specific for glucose. No other substance excreted in urine is known to give a positive result, including other reducing substances (eg, galactose, fructose, and lactose). This test may be used to determine whether the reducing substance found in urine is glucose. Glucosuria occurs when the renal threshold for glucose is exceeded (typically >180 mg/dL); this is most commonly, although not exclusively, seen in diabetes. However, if the urine glucose is high and the patient is not known to have diabetes mellitus, more specific testing should be considered (fasting blood glucose and/or glycosylated hemoglobin).

Reference Values

Negative

Interpretation

Small amounts of glucose are normally excreted by the kidney. These amounts are usually below the sensitivity of this test but, on occasion, may produce a color between negative and 100 mg/dL (trace), which is interpreted by the instrument as a positive. Results at the first positive level may be significantly abnormal if found consistently.

Specimen Retention Time

2 Days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

82945

LOINC Code Information

Test ID Test Order Name Order LOINC Value
GLUR1 Glucose, Random, U 53328-1

 

Result ID Test Result Name Result LOINC Value
GLUR1 Glucose, Random, U In Process

Day(s) Performed

Monday through Sunday

Report Available

1 day