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Test Code LAB777 Carbohydrate Antigen 19-9 (CA 19-9)

Performing Laboratory

Barnes-Jewish Hospital Laboratory

Methodology

Cobas ECLIA electrochemiluminescence

 

Results from different manufacturers or methods may not be comparable. Serial testing should be performed using the same method.

 

Literature Reference:

Package insert: Carbohydrate Antigen 19-9 Roche Corporation. 09/2020

Specimen Requirements

Specimen Type: Plasma

Container/Tube: Mint Green
Specimen Volume: Full tube

 

Day(s) Test Set Up

Monday through Sunday
Turnaround Time:
STAT: not available

Routine: results available 2-4 hours of receipt

Test Classification and CPT Coding

86301

Reference Values

≤ 35 Units/mL

Literature Reference:

Package insert: Carbohydrate Antigen 19-9 Roche Corporation. 09/2020

 

 

Specimen Transport Temperature

Ambient

Additional Information

For BJH Laboratory Use Only

Alternate Tube Type:

Red Top (serum)

Purple top (K2 & K3 EDTA)
Analyte Stability:

See Analyte Stability Chart in Special Instructions.

Laboratory Processing Instructions:

Test performed in BJH Core lab.  Processed by automated line and delivered to Cobas 8000 for anaylsis. Original specimens are stored refrigerated for 5 days.

Special Instructions

LOINC Code Information

Name LOINC Code
Carbohydrate Antigen 19-9, Serum 24108-3