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Cholinesterase Phenotype, Serum

Test ID: CHEP

Test

Aliases/Synonyms

Dibucaine Inhibition Test; Fluoride Number; Pseudo Cholinesterase

Method

Enzymatic

Report Includes

Cholinesterase - Total; Cholinesterase Phenotype

Specimens

Serum

Important Note: TEST ID CHEP
Non-interfaced clients should specify the Test ID CHEP 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 - Total, Serum

Clinical Utility

To identify individuals with inherited pseudocholinesterase deficiency before they are given anesthesia with the muscle relaxant succinylcholine or to help determine the cause of prolonged apnea after surgical anesthesia.

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 CHEP
Non-interfaced clients should specify the Test ID CHEP 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 - Total, 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
Cholinesterase Phenotype
  • Refer to report.
The phenotype for the usual enzyme is UU

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
CHEP 6556CHOLINESTERASE, TOTAL U/L
6562CHOLINESTERASE PHENOTYPE

Test Version

1-Feb-2023