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White Blood Cell (WBC) Count, Fluid

Test Code
FLWBC


CPT Codes
89050

Preferred Specimen
Pericardial, pleural, peritoneal, synovial fluid. 


Minimum Volume
1 mL


Transport Container
Sterile container


Transport Temperature
Refrigerated


Specimen Stability
​Room Temperature: 1 hour
Refrigerated: 48 hours
Frozen: Unacceptable


Performing Laboratory
This test is performed at the following locations:
  1. MercyOne Siouxland Medical Laboratory



Last Updated: September 6, 2022


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.