Unit Converter
Cholinesterase

SI UNITS (recommended)

CONVENTIONAL UNITS

Synonym

Choline esterase, Acetylcholinesterase, Butyrylcholinesterase, Pseudocholinesterase, Cholinesterase II, CHS, AChE, BChE, EC 3.1.1.8

Units of measurement

nkat/l, µkat/l, nmol/(s•L), µmol/(s•L), U/L, IU/L, µmol/(min•L), µmol/(h•L), µmol/(h•mL)

Cholinesterase (pseudocholinesterase or cholinesterase II) is found in the liver, pancreas, heart, serum and in the white matter of the brain. This enzyme must not be confused with acetylcholinesterase from erythrocytes (EC 3.1.1.7), which is also referred to as cholinesterase I. The biological function of cholinesterase is unknown. Serum cholinesterase serves as an indicator of possible insecticide poisoning. It is measured as an index of liver function. In preoperative screening, cholinesterase is used to detect patients with atypical forms of the enzyme and hence avoid prolonged apnea caused by slow elimination of muscle relaxants. Depressed cholinesterase levels are found in cases of intoxication with organophosphorus compounds and in hepatitis, cirrhosis, myocardial infarction, acute infections and atypical phenotypes of the enzyme.

SI units Conversion Calculator. Convert Cholinesterase level to nkat/l, µkat/l, nmol/(s•L), µmol/(s•L), U/L, IU/L, µmol/(min•L), µmol/(h•L), µmol/(h•mL) . Clinical laboratory units online conversion from conventional or traditional units to Si units. Table of conversion factors for Cholinesterase unit conversion to nkat/l, µkat/l, nmol/(s•L), µmol/(s•L), U/L, IU/L, µmol/(min•L), µmol/(h•L), µmol/(h•mL) .

Last updated: February 16, 2025

Created by: Dr. Rajesh Moganti

Reviewed by : Medical Review Board

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