Glucose, Random, Urine
Use
The test is specific for glucose, distinguishing it from other reducing substances in urine such as galactose, fructose, and lactose. It is useful for identifying glucosuria, which occurs when the renal threshold for glucose is exceeded, a situation often encountered in diabetes. This test helps determine if a reducing substance found in urine is glucose. If a high level of glucose is detected without known diabetes, further testing like fasting blood glucose or glycosylated hemoglobin is recommended.
Special Instructions
Collect a random urine specimen in a plastic container, with no preservative. Minimum volume required for testing is 2 mL.
Limitations
Ketone bodies in urine can reduce the sensitivity of this test, potentially causing false negatives in specimens with low levels of glucose. High ketone levels are unlikely to coincide with low glucose levels, making such combinations metabolically improbable in screenings. Small amounts of glucose might be excreted by the kidneys and fall below the sensitivity of this test, occasionally resulting in a trace positive reading.
FDA ApprovedNew York Approved
Methodology
Automated Analyzer (Clinical Chemistry)
Biomarkers
LOINC Codes
- 53328-1
Result Turnaround Time
1 day
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
20 mL
Minimum Volume
2 mL
Container
Plastic urine container
Collection Instructions
Collect a random urine specimen. No preservative.
Storage Instructions
Refrigerated is preferred for up to 72 hours; ambient storage is acceptable for up to 2 hours.
Causes for Rejection
Preservative added or any sample other than random urine.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 2 hours |
| Refrigerated | 72 hours |