In living pets, this is rarely done because of cost, appropriate sample availability and turn around time ($ 244.55 vs $ 8.00 - $ 49.45 for
a cholinesterase test).
Cholinesterase test results can be quite difficult for your veterinarian to interpret.
No one is entirely satisfied with the diagnostic accuracy of
cholinesterase tests that are currently available - that is why so many different methods are currently used to measure cholinesterases.