Measurement of plasma cholinesterase is used to monitor excessive exposure to the anticholinesterase organophosphate insecticides, predict susceptibility to prolonged apnoea after administration of the muscle relaxant succinylcholine, investigate the inheritance of variants of the enzyme and assess liver function.
The symptoms of organophosphate poisoning are nausea, giddiness, blurred vision, vomiting, diarrhoea, excessive salivation, impaired night vision, and sometimes loss of consciousness.
Details of organophosphate exposure or known phenotype should be provided. Cholinesterase phenotyping may be performed if abnormal results have no clinical explanation.
Chilled (2 - 8 degrees Celsius)
Normal Range >60 U/L
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