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Carnitine, Total and Free - Blood

Source Blood
 
Mnemonic BGLBL

BGL Test Name Prompt: Carnitine
 
Specimen Requirements

1 x 4 mL dark green top sodium heparin tube, NOT PST.  Red top non-additive tube is also acceptable.

Minimum 0.5 mL plasma or serum.

Requires a minimum four-hour fast or just prior to next feed for newborns.
 
Minimum Whole Blood Volumes for Micro-Collections using Microtainers

Specimen Handling Send a copy of the requisition with the specimen.

PSC:
Centrifuge, transfer plasma or serum to aliquot tube, write "Heparin"  or "Red Top" on the aliquot tube, and transport on ice to DSC.

RRL:
Centrifuge, transfer plasma or serum to aliquot tube, write "Heparin" or "Red Top" on the aliquot tube, and transport on ice to ACH.

Extra-regional:
Centrifuge, transfer plasma or serum to aliquot tube, write "Heparin" or "Red Top" on the aliquot tube, and freeze prior to transport to DSC.
Additional Information
 
Testing Location ACH Biochemical Genetics Lab
Testing Frequency Weekly
 
Alternate Name(s) Total Carnitine - Blood; Free Carnitine Fraction - Blood; Acylcarnitine Fraction - Blood; Carnitine Acyl/Free Ratio - Blood
 
Reference Interval Provided on test report.