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St. John Health System
Lab Catalog


Index:

Cholinesterase, Serum

Order Name CHOLINES S
Test Number: 3607775
Revision Date 12/12/2022
Test Name Methodology LOINC Code
Cholinesterase Serum
Kinetic Spectrophotometric 2098-2 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 0.5 mL (0.2) Serum Clot Activator SST Room Temperature
Instructions Notes: 0.2 mL (Note: This volume Does NOT allow for repeat testing.)
Specimen Type: Red-top tube or gel-barrier tube
Specimen Storage: Room temperature
Specimen Collection: Separate serum from cells immediately after clotting (30 minutes) and place in transport tube. Mark transport tube "serum".
Specimen Stability: Ambient: 14 days, Refrigerated : 14 days, Frozen: 14 days
GENERAL INFORMATION
Expected TAT 2 - 4 days  
Clinical Use Approximately 1 in every 2500 individuals has inherited defective or deficiency of the enzyme (pseudocholinesterase) that metabolizes succinylcholine (a anesthetic agent). With ''normal'' dosage, these individuals have prolonged apnea. Such individuals are responsive at much smaller concentrations of this anesthetic agent than the general population. Low concentrations of Pseudocholinesterase are observed in individuals exposed to organophosphorous insecticides and patients with hepatic dysfunction. 
Notes Labcorp Test Code: 007211
CPT Code(s) 82480
Service Provided By Labcorp Oklahoma, Inc.
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