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CEA, CSF
Test CodeCSFCEA (NI)
Quest Code
17420
CPT Codes
82378
Preferred Specimen
3 mL CSF in sterile transport tube
Minimum Volume
2 mL
Transport Container
Sterile transport tube
Transport Temperature
Frozen
Specimen Stability
Room temperature: 7 days
Refrigerated: 28 days
Frozen: 28 days
Refrigerated: 28 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
Methodology
Immunoassay (IA)
Setup Schedule
Daily
Report Available
2 days
Reference Range
<2.0 ng/mL
Clinical Significance
CEA is a tumor marker that is useful to monitor patients with persistent, or for recurrent or metastatic colonic carcinoma. As many as 30% of patients with breast, lung, hepatocellular, and pancreatic carcinoma also have elevated concentrations of CEA. Individuals who smoke may have a slightly higher baseline than non-smokers.
Performing Laboratory
Quest Diagnostics Nichols Institute-Chantilly VA |
14225 Newbrook Drive |
Chantilly, VA 20151-2228 |
Last Updated: March 19, 2025