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22191 CEA

CEA
Test Code: CEA
Synonyms/Keywords
​Carcinoembroyonic Ag.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Serum​ Serum Separator Tube (SST) ​Red Top Tube (RTT)​ 1.0 mL​ 0.4 mL​ 0.3 mL​
Specimen Stability Information
Specimen Type Temperature
​Serum

Freeze. May be refrigerated if sample is received within 24 hours of being drawn.​

Interference
Human Anti-Murine Antibodies (HAMA) may develop leading to test interference in patients receiving murine-based agents for chemotherapy or tumor imaging.​
 
For testing performed at The Diagnostic & Treatment Center lab (Weston Center): High doses of exogenous biotin (also termed Vitamin B7, Vitamin H or Coenzyme R) may interfere with this assay. It is recommended that patients refrain from consuming any multivitamin or supplement containing biotin for at least 72 hours prior to collection of a blood sample.
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Diagnostic Treatment Center​ ​Monday through Sunday​​Less than 2 hours​​Homogenous, Sandwich Chemiluminescent Immunoassay/Siemens Dimension Vista
Marshfield​Monday through Sunday​Less than 2 hours​
Two-step Sandwich Immunoassay using Direct Chemiluminometric Technology/Siemens Centaur ​
Reference Range Information
Performing Location Reference Range
Diagnostic Treatment Center <=3.0 ng/mL 
​Marshfield ​<=2.5 ng/mL
​​​ ​Reference limit is approximately 2-fold higher in smokers.
Interpretation
CEA is elevated in the serum of some patients with non-malignant diseases and in heavy smoker. CEA should not be used in the diagnosis of cancer or for screening asymptomatic patients. If specimen source in not blood, order CEA, Body Fluid (testcode: CEA-O). ​
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
82378 ​ ​ ​ ​ ​
Synonyms/Keywords
​Carcinoembroyonic Ag.
Ordering Applications
Ordering Application Description
​Centricity

​a. CEA

b. CEA Carcinoembroyonic Ag.

​Cerner ​CEA
​COM ​CEA-Blood
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Serum​ Serum Separator Tube (SST) ​Red Top Tube (RTT)​ 1.0 mL​ 0.4 mL​ 0.3 mL​
Specimen Stability Information
Specimen Type Temperature
​Serum

Freeze. May be refrigerated if sample is received within 24 hours of being drawn.​

Interference
Human Anti-Murine Antibodies (HAMA) may develop leading to test interference in patients receiving murine-based agents for chemotherapy or tumor imaging.​
 
For testing performed at The Diagnostic & Treatment Center lab (Weston Center): High doses of exogenous biotin (also termed Vitamin B7, Vitamin H or Coenzyme R) may interfere with this assay. It is recommended that patients refrain from consuming any multivitamin or supplement containing biotin for at least 72 hours prior to collection of a blood sample.
Reference Range Information
Performing Location Reference Range
Diagnostic Treatment Center <=3.0 ng/mL 
​Marshfield ​<=2.5 ng/mL
​​​ ​Reference limit is approximately 2-fold higher in smokers.
Interpretation
CEA is elevated in the serum of some patients with non-malignant diseases and in heavy smoker. CEA should not be used in the diagnosis of cancer or for screening asymptomatic patients. If specimen source in not blood, order CEA, Body Fluid (testcode: CEA-O). ​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Diagnostic Treatment Center​ ​Monday through Sunday​​Less than 2 hours​​Homogenous, Sandwich Chemiluminescent Immunoassay/Siemens Dimension Vista
Marshfield​Monday through Sunday​Less than 2 hours​
Two-step Sandwich Immunoassay using Direct Chemiluminometric Technology/Siemens Centaur ​
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
82378 ​ ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.