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Test Code PCHE Pseudocholinesterase, Total

Clinical Indications

Acceptable test for determining acute exposure to organophosphate insecticides.

Additional Test Codes

Epic Order Name: PSEUDOCHOLINESTERASE TOTAL (aka PCHE)
Sunquest Order Code: PCHE
Epic Px Code: LAB2453

Specimen Collection Type

Preferred: Gold
Acceptable: Red, lavender (EDTA)

Minimum Collection Volume

0.1 mL

Reference Range

2,900-7,100 U/L

Critical Value

N/A

Interpretation

N/A

Rejection Criteria

Whole blood on clot. Hemolyzed specimens.

Specimen Availability for Add-on Testing

4 hours

Specimen Stability

Refrigerated (preferred): 1 week
Ambient: 4 hours
Frozen: 3 months

Day(s) Performed

Mon-Fri

Performing Lab- Department

TUKHS-BH-Mail Outs

CPT Code

82480

LOINC Code

2098-2

Test Alias

Cholinesterase (Pseudo), Total, Serum or Plasma
Cholinesterase, Serum or Plasma
Serum Cholinesterase (Pseudochol)

Additional Information / Notes

Specimen must be drawn prior to surgery or more than two days following surgery. Do not draw in recovery room.
Plasma values are slightly lower than serum.