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Plasma Renin Activity

Test Code
RENAC (Quest 10537)


Alias/See Also
Quest code 16846


Preferred Specimen
3.0 mL Plasma, Minimum 0.4 mL Instructions: Patient should refrain from taking medications, preferably 3 weeks before draw. Patient should be ambulatory for 30 minutes before draw. Patient should be on a moderate sodium diet during collection.  Specimen Stability  Room Temperature: 24 hours,  Refrigerated: Unacceptable, Frozen: 6 months


Instructions
Instruction: Collect plasma from (L, lavender-top tube,EDTA). Centrifuge and separate blood at room temperature. Avoid refrigeration to eliminate cryoactivation of prorenin to renin. Freeze and ship frozen. When submitting catheterization studies, it is recommended that the referring laboratory retain a portion of each sample.


Transport Container
Lavender Top EDTA tube


Transport Temperature
Frozen


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Grossly hemolyzed samples are unacceptable and will be cancelled.




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.