Days Set Up
Monday - Friday
Analytic Time

4 - 8 days

MiChart Code
Encainide (Enkaid), Level
Soft Order Code

Test Updated:



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All specimens should be accompanied by a requisition.

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Test Overview

Test Methodology

Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

Test Usage

Therapeutic drug monitoring.

Reference Range

Encainide: 15 - 100 ng/mL; O-desmethylencainide (ODE): 100 - 300 ng/mL; 3-methoxy-ode (MODE): 60 - 300 ng/mL. Ten percent of patients do not form therapeutic levels of the active metabolites MODE and ODE. In these patients, the recommended range for encainide is 300 - 1,200 ng/mL.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Instructions

Collect blood in a red or green top tube; do not use SST tube. Centrifuge, aliquot serum or plasma into plastic vial and refrigerate.

Yellow Top Tube
Red Top Tube
Normal Volume
1.0 mL heparinized plasma or serum
Minimum Volume
0.25 mL heparinized plasma or serum

Billing Information

CPT Code
Pro Fee Code
Insurance Auth Info

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.