Cholinesterase, RBC and Plasma

Message

Both whole blood and plasma are requiredCollect full tubes, following standard venipuncture techniques.

Test Code

LAB13443 CLRP

Alias/See Also

CLRP

CPT Codes
82480| 82482

Includes

@BKRCERMSGREFRESH(2302793)@ @BKRCERMSGREFRESH(2302794)@

Instructions

Processing Instructions (Lab use only): Both whole blood and plasma are requiredPlasma cholinesterase results, as well as the calculated RBC cholinesterase results, are not accurate if plasma sample is not separated from the RBC's in a timely manner.Send 5 mL Refrigerated uncentrifuged whole blood and 1 mL Refrigerated plasma. Do not send packed cells. Do not send only one tube of whole blood.Hemolyzed plasma samples are not acceptable. Hemolysis can lead to apparent increases in plasma cholinesterase activity, and could mask an enzyme deficiencyMinimum Testing Volume: 4 mL whole blood and 0.5 mL plasma Transport Temperature: Refrigerated Stability: Ambient: 24 hoursRefrigerated : 7 daysFrozen: N/A Causes for Rejection: HemolysisOnly received whole blood

Report Available

3-Days

Clinical Significance

1230170447

Last Updated: May 18, 2026

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.