ARUP's Laboratory Test Directory

0081344: Cytokeratin 19 Fragment (CYFRA 21-1), Serum

Test Mnemonic: CYFRA
Methodology: Chemiluminescent Immunoassay

Performed: Tue

Reported: 1-8 days

Specimen Required:  
Collect: One 3 mL red or SST.

Transport: 1 mL serum at 2-8°C. (Min: 0.5 mL) Submit specimen in an ARUP Standard Transport Tube.

Pediatric Collection/Transport: 0.5 mL serum at 2-8°C.

Remarks: Remove serum from cells ASAP. Avoid repeated freeze/thaw cycles.

Unacceptable Conditions: Plasma. Icteric, lipemic, or hemolyzed specimens.

Stability: After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 2 months

Reference Interval:
0-1.9 ng/mL

Interpretive Data:
This assay is performed using the Fujirebio Diagnostics CYFRA 21-1 CLEIA. Results obtained with different assay methods or kits cannot be used interchangeably. 

Please refer to Statement D in the Compliance Statements section in the front of the Laboratory Test Directory.



CPT Code(s):
86316

 

 

 
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