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Test Catalog

Test ID: CDCOM    
Celiac Disease Comprehensive Cascade

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Specimen Type Describes the specimen type needed for testing

Whole Blood ACD-B

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.

Forms: If not ordering electronically, complete, print, and send a Neurology Test Request Form (T732) with the specimen (


Blood and serum are required.


Specimen Type: Blood

Container/Tube: Yellow top (ACD [solution B])

Specimen Volume: 6 mL

Collection Instructions: Do not transfer blood to other containers.



Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 2 mL

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.

Blood: 3 mL; Serum: 1.5 mL

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


Mild OK; Gross OK


Mild OK; Gross OK


Mild OK; Gross OK


There are no rejection criteria for whole blood ACD-B

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 14 days
Whole Blood ACD-BRefrigerated (preferred)