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Test Code ACHS Acetylcholinesterase, Erythrocytes

Reporting Name

Acetylcholinesterase, RBC

Useful For

Detecting effects of remote (months) past exposure to cholinesterase inhibitors (organophosphate insecticide poisoning)

Method Name

Spectrophotometric-Thiocholine Production

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Whole Blood EDTA

Specimen Required

Specimen must arrive within 72 hours of draw.


Container/Tube: Lavender top (EDTA)

Specimen Volume: 4 mL

Additional Information: Date of draw is required.

Specimen Minimum Volume

2.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Whole Blood EDTA Refrigerated

Reject Due To


Mild reject; Gross reject


Mild OK; Gross OK






Reference Values

31.2-61.3 U/g of hemoglobin

Day(s) and Time(s) Performed

Tuesday, Friday; 10 a.m.

Test Classification

This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
ACHS Acetylcholinesterase, RBC 49230-6


Result ID Test Result Name Result LOINC Value
ACHSR Acetylcholinesterase, RBC 49230-6