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Test Code CEA CARCINOEMBRYONIC ANTIGEN

Important Note

24 hours before this blood test: Do not take any supplements containing biotin or Vitamin B7 which are commonly found in hair, skin, and nail supplements, and multi-vitamins.

Sufficient Biotin concentrations in serum can lead to falsely decreased results.

Methodology

Chemiluminescent Immunoassay - OrthoClinical Diagnostics Vitros 7600 XT

Specimen Requirements

Submit only 1 of the following specimens:

 

Preferred:

Serum Gel Tube

Container/Tube: Serum gel tube(s)
Specimen Volume: 1 mL of serum-Grossly hemolyzed specimen is not acceptable.

Collection Instructions: Spin down within 4 hours of draw.

 

Alternate:

 

Plain, Red-Top Tube

Container/Tube: Plain, red-top tube(s)
Specimen Volume: 1 mL of serum-Grossly hemolyzed specimen is not acceptable.

Collection Instructions: Spin down within 4 hours of draw.

 

 

Plasma

Container: Green-top (lithium heparin) tube(s)

Specimen Volume: 1 mL of serum-Grossly hemolyzed specimen is not acceptable.

Collection Instructions: Spin down within 4 hours of draw.

Day(s) Test Set Up

Monday through Friday

Reference Values

≤3.0 ng/mL

Some smokers may have elevated CEA, usually <5.0 ng/mL.

Serum markers are not specific for malignancy and values may vary by method.

Performing Laboratory

Logan Health Medical Center-Chemistry

Test Classification and CPT Coding

82378

Specimen Transport Temperature

Refrigerate