Inpatient and Outpatient Orderable

Pseudocholinesterase, RBC

Synonyms

  • BENZOYLCHOLINESTERASE
  • CHOLINE ESTERASE II
  • LAB965
  • PSEUDOCHOLINESTERASE

Cerner Name

Cholinesterase, RBC

Clinical Info

Acceptable test for determining chronic exposure to organophosphate insecticides.
Erythrocyte cholinesterase is measured to diagnose organophosphate and carbamate toxicity and to detect atypical forms of the enzyme. Cholinesterase is irreversibly inhibited by organophosphate insecticides and reversibly inhibited by carbamate insecticides. Serum or plasma pseudocholinesterase is a better measure of acute toxicity, while erythrocyte levels are better for chronic exposure. (Serum level returns to normal prior to normalizing of red cell level)

Specimen Sources

Blood, Arterial Blood, Capillary Blood, Central Line Blood, Venous

Specimen Types

Blood

Container

Lavender Top Tube

Collection Instructions

Container/Tube: Lavender Top (EDTA) Tubes
Specimen:3 mL Whole EDTA Blood (1 mL min)
Transport Temperature: Refrigerated
Stability: 4 Hours Room Temperature
7 Days Refrigerated
Unacceptable Frozen

Specimen Volume

3 mL Whole EDTA Blood (1 mL min)

Transport Instructions

Refrigerated

Specimen Stability

4 Hours Room Temperature
7 Days Refrigerated
Unacceptable Frozen

Methodology

Quantitative Enzymatic

Days Performed

TAT: 2 - 5 Days

Performing Laboratory

ARUP Laboratories
Please note Reference Range update effective 4/11/22

CPT

82482

LONIC Code 49231-4

PDM

5901130

Only Orderable at Locations:

Orderable Everywhere

Results
Component Name Base Name Common Name External Name
CHOLINESTERASE RBC CHOLINESTER CHOLINESTERASE, RBC Cholinesterase, RBC

Result Interpretation

Reference Range: 25 – 52 U/g Hb

Forms
LAB965 build edit