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0020175
Insecticide Exposure Panel
CHE-SCRN
Ordering Recommendation
Preferred test for evaluating acute and chronic exposure to organophosphate pesticides.
New York DOH Approval Status
This test is New York state approved.
Specimen Required
Patient Preparation
Collect
Lavender (EDTA) or pink (K2EDTA).
Specimen Preparation
DO NOT FREEZE. Do not spin down or separate. Transport 3 mL whole blood. (Min: 2 mL)
Storage/Transport Temperature
Refrigerated. Do not place whole blood directly on cool pack when shipping.
Unacceptable Conditions
Green (sodium or lithium heparin). Frozen whole blood. Hemolyzed specimens.
Remarks
Stability
Ambient: 4 hours; Refrigerated: 1 week; Frozen: Unacceptable
Methodology
Quantitative Enzymatic Assay
Performed
Mon-Fri
Reported
1-4 days
Reference Interval
| Test Number |
Components |
Reference Interval |
|---|---|---|
| Cholinesterase, Plasma | 2.9-7.1 U/mL | |
| Cholinesterase, RBC | 7.9-17.1 U/mL RBC | |
| Cholinesterase, RBC - ratio to Hb | 25-52 U/g Hb | |
| Cholinesterase, Plasma (Ellman) | 1.0-2.4 U/mL | |
| Cholinesterase, RBC (Ellman) | 4.0-9.0 U/mL WB |
Interpretive Data
Ellman Std. test results obtained using a conversion factor which standardizes to the acetylthiocholine assay at 25°C.
Compliance Category
Standard
Note
Hotline History
N/A
CPT Codes
82480; 82482
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0020196 | Cholinesterase, Plasma | 2098-2 |
| 0020197 | Cholinesterase, RBC - ratio to Hb | 49231-4 |
| 0020448 | Cholinesterase, RBC | 2099-0 |
| 0020449 | Cholinesterase, Plasma (Ellman) | 2098-2 |
| 0020450 | Cholinesterase, RBC (Ellman) | 2099-0 |
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
- Cholinesterase, RBC & Pseudocholinesterase
- Pseudocholinesterase & Cholinesterase, RBC
Insecticide Exposure Panel
