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St. John Health System
Lab Catalog


Index:

Cholinesterase, Serum, with Dibucaine Inhibition

Order Name PSEUDO/DI
Test Number: 3608550
Revision Date 12/12/2022
Test Name Methodology LOINC Code
Cholinesterase Serum
Kinetic Spectrophotometric 2098-2 
Dibucaine Number % inhibition
39354-6 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL Serum Clot Activator SST Room Temperature
Instructions Specimen Type: Gel-Barrier Tube
Specimen Stability: Ambient: Not Available, Refrigerated : Not Available, Frozen: Not Available
GENERAL INFORMATION
Testing Schedule Fri 
Expected TAT 2-9 days  
Clinical Use The Pseudocholinesterase phenotype can be determined by analysis of Pseudocholinesterase and the percent inhibition by Dibucaine. Approximately 96% of the population has normal activity, approximately 4% will exhibit decreased activity that leads to prolonged paralysis following use of succinylcholine, and 1 in 3000 patients will exhibit severe , prolonged paralysis following anesthetic exposure. 
Notes Labcorp Test Code: 302107
CPT Code(s) 82480; 82638
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Reference Lab