Days Set Up
Monday, Thursday
Analytic Time

3 - 6 days

MiChart Code
Acylcarnitine, Plasma
Soft Order Code

Test Updated:


Acylcarnitine Analysis Plasma
Acylcarnitine Profile
Acylcarnitine Plasma

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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

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Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

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Test Overview

Test Methodology

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

Test Usage

The analysis of acylcarnitine profiles is performed for use in screening of inborn errors of metabolism, specifically fatty acid oxidation disorders, and certain organic acidemias (acidurias). In some cases, results are diagnostic of a specific disorder, while in other cases, further testing may be needed.

Reference Range

Interpretive report provided.

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

Specimen Requirements

Collection Offsite

Collect specimen in a green top tube (sodium heparin), Centrifuge within 2 hours of collection and aliquot plasma and freeze (preferred) or store at refrigerated temperature (2-8°C) for up to 7 days. Grossly hemolytic specimens are unacceptable. Plasma specimens stored at room temperature greater than 2 hours are unacceptable.

Normal Volume
0.1 mL plasma
Minimum Volume
0.05 mL plasma

Billing Information

CPT Code
Pro Fee Code

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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.