Pathology Handbook

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Cholinesterase

Alternative Names:Pseudocholinesterase
Dibucaine Number
Fluoride Number
Laboratory:Clinical Biochemistry
Test Code:CHESTERASE
Specimen Types:Serum
Plasma
Container Types:
SST
Lithium Heparin (with Gel)
Adults Volume or Mass:5 mL
Collection & Request Instructions:

In cases where prolonged apnoea follows suxamethonium administration an assessment of atypical cholinesterase can be made using the Dibucaine and Fluoride Numbers. Such assessment should not be made until 24 hours after suxamethonium administration.

Avoid haemolysis.

Note Additional Collection Instructions:

Pathology Queensland prefer to receive BOTH a SST or Lithium Heparin Plasma specimen PLUS a 4 mL EDTA whole blood sample.(EDTA specimen must be sent unspun).

 

Transport Instructions between Sites and/or Laboratories:Room Temperature
Assay Frequency:Weekly
External Laboratory:Pathology Queensland- RBWH Campus