CHOU - Specimen: Carbohydrate, Urine

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Test ID: CHOU    
Carbohydrate, Urine

Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.

Testing begins with CHOU / Carbohydrate, Urine. If qualitative results are normal, or abnormal but not indicative of galactose or glucose, testing is complete.

If qualitative results indicate the presence of galactose, GALU / Galactose, Quantitative, Urine will be performed at an additional charge.

If qualitative results indicate the presence of glucose, RGLUR / Glucose, Random, Urine will be performed at an additional charge.

Specimen Type Describes the specimen type needed for testing


Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Container/Tube: Plastic, 10-mL urine tube (Supply T068)

Specimen Volume: 5 mL

Collection Instructions: Collect an early-morning (preferred) random urine specimen.

Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.

1 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected









Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.

Specimen TypeTemperatureTime
UrineFrozen (preferred)21 days
 Refrigerated 21 days