CYFRA 21-1 (Cytokeratin 19 Fragment), Serum
0081344
 
Ordering Recommendation
Mnemonic
CYFRA
Methodology
Quantitative Enzyme-Linked Immunosorbent Assay
Performed
Tue
Reported
1-8 days
The level of CYFRA 21-1 cannot be used as absolute evidence for the presence or absence of disease.
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
 
Collect
Plain red or serum separator tube.  
Specimen Preparation
Allow serum specimen to clot completely at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL)  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Plasma. Icteric, lipemic, or hemolyzed specimens.  
Remarks
 
Stability
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 2 months (avoid repeated freeze/thaw cycles)  
Reference Interval
0.0-2.3 ng/mL
Interpretive Data
This assay is performed using the Fujirebio Diagnostics CYFRA 21-1 Enzyme Immunoassay. Results obtained with different assay methods or kits cannot be used interchangeably. Results cannot be interpreted as absolute evidence of the presence or absence of malignant disease.
Note
CPT Code(s)
86316
Components
Component Test Code*Component Chart Name
0081345CYFRA 21-1, Serum
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, contact interface support at interface.support@aruplab.com.
Cross References
  • CYFRA 21-1 (Cytokeratin 19 Fragment (CYFRA 21-1), Serum)
  • Soluble Cytokeratin 19 Fragment (Cytokeratin 19 Fragment (CYFRA 21-1), Serum)