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Test Code CEA CEA

Aliases

Carcinoembryonic Antigen

Patient Preparation

No special patient preparation required

Collection Method

Venous collection

Minimum Volume

1 mL

Container

Lt Green / Plasma Separator / Lithium Heparin

Preferred Specimen

Light Green Top (lithium heparin) plasma

Acceptable Specimens

Serum:

  • Gold Top SST
  • Red Top

Plasma:

  • Light Geen Top (lithium heparin)
  • Pink Top (K3 EDTA)

 

Reference or Target Ranges

< 5 ng/mL

Reportable Units

ng/mL

Critical Value

Not defined for this assay

Reasons for Rejection

Hemolysis Threshold 500 mg/dL
Icterus Threshold 20 mg/dL
Lipemia Threshold 1000 mg/dL
Other QNS, contaminated, improperly Labeled, improper specimen type

Specimen Stability

Ambient 8 hours
Refrigerated (4°C to 8°C) 7 days
Frozen(-40°C to 0°C) 6 months

Performance Information

Days and Time Performed 24/7
Expected Turn Around Time Routine: 4 hours
Stat Availability No
Performing Bench UH Chemistry
Methodology/Method Description Siemens Atellica – Immunoassay

CEA values determined on patient samples by different testing procedures cannot be directly compared with one another and could be the cause of erroneous medical interpretations.

CPT Codes

82378