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Glucose, Urine 24 Hour
MessagePerforming Lab: Central Lab, Regions
Test Code
3323
Alias/See Also
Sunquest: UGL24
CPT Codes
82945
Preferred Specimen
0.2 mL of a 24-hour urine collection
Minimum Volume
0.1 mL
Instructions
Preserve 24 hour urine collection with refrigeration.
Consult Urine Collection/Processing Information for acceptable preservatives
Consult Urine Collection/Processing Information for acceptable preservatives
Transport Temperature
Refrigerated
Specimen Stability
Refrigerated: 7 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Unacceptable preservatives
Methodology
Colorimetric: Glucose oxidase-hydrogen peroxide (Trinder)
Setup Schedule
Hospital: Daily
Clinics: Monday - Friday
Clinics: Monday - Friday
Report Available
Same Day
Reference Range
<0.5 g/24 hours
Clinical Significance
Glycosuria occurs when the blood glucose level exceeds the renal threshold for glucose. After a carbohydrate-rich meal, some normal individuals may excrete small amounts of glucose in the urine. Also, in a condition known as benign glycosuria, nondiabetics may excrete glucose because of an abnormally low renal threshold.
