Cholinesterase, RBC-994
03/21/2022
Due to reagent availability issues, this test will not be available to order.
There is no alternative available.
Test info
Cholinesterase I
Cholinesterase, erythrocytic
RBC cholinesterase
Red Cell Cholinesterase
True Cholinesterase
Erythrocyte cholinesterase is measured to diagnose organophosphate and carbamate toxicity and to detect atypical forms of the enzyme.
Specimen
Immediately following collection, mix sample thoroughly by gently inverting 8 - 10, times to prevent clotting
Lavender (EDTA), 4mL
Ambient (preferred) - 14 days
Refrigerated - 14 days
Frozen - NO
- Plasma specimen
- Anticoagulants other than EDTA
- Frozen whole blood received
- Hemolysis
Performance
Spectrophotometry (Ellman) - kinetic
Clinical and Interpretive info
5300 - 10,000 IU/L
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).