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Cholinesterase – Total, Serum

Test ID: CHE
Orderable by Ontario ND

Test

Method

Enzymatic

Report Includes

Cholinesterase - Total

Specimens

Serum

Important Note: TEST ID CHE
Non-interfaced clients should specify the Test ID CHE when ordering this test. Not doing so will cause processing delays while ICL ascertains which test you are requesting.
A similar test is offered by this lab: Cholinesterase Phenotype, Serum

Clinical Utility

To determine if you have been exposed to and/or poisoned by certain organophosphate chemicals found in pesticides; to monitor cholinesterase levels if you work with pesticides.

Test Location

Laboratory Reference Centre, 237 Barton Street E, Hamilton ON L8L 2X2

Test Version

1-Feb-2023

Specimen

Specimens

Serum

Important Note: TEST ID CHE
Non-interfaced clients should specify the Test ID CHE when ordering this test. Not doing so will cause processing delays while ICL ascertains which test you are requesting.
A similar test is offered by this lab: Cholinesterase Phenotype, Serum

Collection Containers

Red top (no additive); Gold top (clot activator & gel)

Sample Volume

2 mL

Patient Preparation

If patient has had recent surgery please wait 24 hours post surgery before blood collection.

Collection & Handling

Handling Information

Store and send cold or frozen.

Stability

Ambient 24 hours
Refrigerated 2 months
Frozen Over 2 months

Rejection Criteria

Specimen Plasma

Test Version

1-Feb-2023

Performance / Interpretation

Method

Enzymatic

Turnaround Time

10 days

Results

Name Units Reference Range Conversion Factor
Cholinesterase - Total U/L
  • 620 - 1370
  • Poisoning from insecticides is best demonstrated by a fall in Cholinesterase from pre-exposure baseline levels.

Test Location

Laboratory Reference Centre, 237 Barton Street E, Hamilton ON L8L 2X2

Test Version

1-Feb-2023

Interface / Setup

HL7 Interface Codes

Order Code Result Codes Units
CHE 6556CHOLINESTERASE, TOTAL U/L

Test Version

1-Feb-2023