Insecticide Exposure Panel : ARUP Lab Tests

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Insecticide Exposure Panel : 0020175

Mnemonic: CHE-SCRN

Methodology:	Quantitative Enzymatic
Performed:	Mon-Fri
Reported:	1-4 days
Specimen Required:	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. Remarks: Unacceptable Conditions: Green (sodium or lithium heparin). Frozen whole blood. Hemolyzed specimens. Stability (collection to initiation of testing): Ambient: 4 hours; Refrigerated: 1 week; Frozen: Unacceptable

Reference Interval:

Test Number	Components	Reference Interval
	Cholinesterase, Plasma	2.9-7.1 U/mL
	Cholinesterase, RBC	7.9-17.1 U/mL
	Cholinesterase, RBC/Hb Ratio	25-52 U/g Hb
	Cholinesterase, Plasma Ellman	1.0-2.4 U/mL
	Cholinesterase, RBC Ellman	4.0-9.0 U/mL (whole blood)

Interpretive Data:

Ellman Std. test results obtained using a conversion factor which standardizes to the acetylthiocholine assay at 25°C.

CPT Code(s):

82480 Cholinesterase, plasma; 82482 Cholinesterase, RBC

Cross References:

Cholinesterase, RBC & Pseudocholinesterase (Insecticide Exposure Panel), Pseudocholinesterase & Cholinesterase, RBC (Insecticide Exposure Panel)

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