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C4 Complement

Message
Centrifuge and Separate Serum/Plasma from cells within 2hrs of collection


Test Code
C4


Alias/See Also
COMPLEMENT C4


Preferred Specimen
Gold Top


Minimum Volume
1 mL 


Other Acceptable Specimens
Red Top
or 
Green Top


Specimen Stability
24 Hrs Room Temp


Performing Laboratory
UMC



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.