Carnitine Analysis, Total and Free

Test Information

Carnitine plays an important role in the transport of long chain fatty acids into the mitochondria as well as the formation of acylcarnitines.

Turnaround Time

10 days

CPT Code(s)

82379

Cost

$120

Indications

Measurement of free and total carnitine levels are important for determining the validity of acylcarnitine profiles as well as following patients under carnitine supplementation.

Methodology

tandem mass spectrometry (MS-MS)

Specimen Requirements

5-7 mL of peripheral blood should be collected in a sodium heparin blood tube. Sample should be spun down; remove plasma and freeze prior to shipment. Approximately 1 mL of plasma is needed for analysis. Blood spots are not acceptable.

Transport Instructions

Frozen plasma samples should be sent via overnight express, preferably on dry ice.

Have Questions? Need Support?

Call our laboratory at 1-800-473-9411 or contact one of our Laboratory Genetic Counselors for assistance.
Robin Fletcher, MS, CGC
Falecia Thomas, MS, CGC
Alex Finley, MS, CGC

Lucy's Story

When our daughter Lucy had a metabolic crisis at 7 days old, we were shocked and devastated to find out that she was born with a rare genetic disorder (MSUD). Her newborn screening results did not make it back in time to prevent the crisis, and no one at our local hospital was familiar with the disease. They did not know how to treat her. Calls were made to Greenwood Genetic Center to confirm her diagnosis and guide her care. Dr. Champaigne and Ami...

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