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Test Code LAB5750 Carnitine, Free and Total, plasma

Performing Laboratory

St. Louis Childrens Hospital

Methodology

Electrospray Tandem Mass Spectrometry (ESI-MS/MS)

Specimen Requirements

Container/Tube: Mint green

Specimen Volume: 3 mL

Alternate Tube type: Green (Lithium Heparin), Red, Gray/Red SST, or Dark Green (Sodium Heparin)

Test Classification and CPT Coding

This test was developed and its performance characteristics determined by St Louis Children's Hospital Laboratory in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administrations. 

CPT Code:  82017

Reference Values

Carnitine Total:  35-80 mcmol/L

Carnitine Free:  20-65 mcmol/L

Acylcarnitine Total:  5-30 mcmol/L

AC/FC Ratio:  0.1-0.8

Additional Information

For BJH Laboratory Use Only

Laboratory Processing Instructions:  BJH Core lab will forward to the performing laboratory upon receipt. Must be aliquoted and frozen within one hour.

Day (s) Test Set Up

Monday through Friday

Cut off is 04:30

Turn around time is 3-5 days