Test Overview
Test Methodology

Colorimetric, Kinetic

Test Usage

Identifying individuals with the abnormal allele who do not rapidly hydrolize the drug succinylcholine. Some individuals with normal total pseudocholinesterase levels may be sensitive to succinylcholine.

Reference Range *

Dibucaine Inhibition: 70 - 90%, Congenital Deficiency: 18 - 20%. Total: Males: 3100 - 6500 U/L; Females: < 18 yrs: Not established; 18-49 yrs: 1800 - 6600 U/L; > or = 50 yrs: 2550 - 6800 U/L.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Daily
Analytic Time

2 - 3 days

Soft Order Code
CHED
MiChart Code
Pseudocholinesterase
Synonyms
  • Cholinesterase
  • Cholinesterase, Dibucaine Inhibition
  • Dibucaine Inhibition
  • PSEUDOCHOLINE, DIBUCAINE INHIB
  • CHED-D
  • CHOLIN T
  • DIBU INHIB
  • PSEUDOCHOL-E, DIBUCAINE INHIBN
  • CHOLINESTERASE, TOTAL
Laboratory
Sendout
Reference Laboratory
Mayo CHED (8767)
Section
Special Testing
Specimen Requirements
Collection Instructions

Collect specimen in a red top or SST tube. Centrifuge WITHIN 2 HOURS, aliquot serum into a plastic vial and refrigerate. For cases of prolonged apnea following surgery, wait 24 hours before obtaining specimen.

Yellow Top Tube
Normal Volume
1 mL serum
Minimum Volume
0.25 mL serum
Additional Information

Includes Total Serum Pseudocholinesterase and Dibucaine Inhibition. Test sent to Mayo Medical Laboratories.

Billing
CPT Code
82638, 82480
Fee Code
23393
LOINC
Z79-4
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