Erythrocyte cholinesterase is measured to diagnose organophosphate and carbamate toxicity and to detect atypical forms of the enzyme.
Lavender (EDTA), 4mL
Ambient (preferred) - 14 days
Refrigerated - 14 days
Frozen - NO
Spectrophotometry (Ellman) - kinetic
5300 - 10,000 IU/L
Cholinesterase is irreversibly inhibited by organophosphate insecticides and reversibly inhibited by carbamate insecticides. Serum or plasma pseudocholinesterase is a better measure of acute toxicity, while erythrocyte levels are better for chronic exposure (serum level returns to normal prior to normalizing of red cell level).