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Test Catalog

Test ID: GRP    
Cyclic AMP, Urinary Excretion

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.

Serum and urine are required. Serum must be drawn at time of urine collection.


Specimen Type: Serum


Preferred: Red top

Acceptable: Serum gel

Specimen Volume: 1 mL

Collection Instructions: Label specimen as serum.


Specimen Type: Urine

Container/Tube: 60 mL urine container (Supply T313)

Specimen Volume: 14 mL

Collection Instructions:

1. Collect a random urine specimen.

2. Label specimen as urine.

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.

Serum: 0.5 mL
Urine: 5.5 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
SerumRefrigerated (preferred)7 days
 Frozen 90 days
UrineFrozen14 days