Carnitine, Free and Total, Plasma
Epic order code: LAB815
- Venipuncture is preferred. Capillary specimens are accurate and acceptable if properly collected.
- Spin specimens before refrigerating them if blood is collected in a gel tube (PST, PPT). If transport is delayed or specimens are not sent by overnight courier, spin the blood, and seperate and freeze the plasma.
- Ambient: 4 hours
- Refrigerated: 1 day
- Frozen: 4 weeks
- Frozen whole blood
- Citrate or acid citrate dextrose (ACD) tube
This test is used to evaluate the plasma carnitine status in individuals at risk for carnitine deficiency, due to carnitine transporter deficiency; inherited metabolic disorders; renal insufficiency; valproic acid therapy; and decreased dietary intake.
Liquid chromatography - tandem mass spectrometry (LC-MS/MS)
5 - 7 business days
Monday - Friday (days); STAT is available after consultation with the Metabolics Laboratory director; call 352.265.9900 to make arrangements for a STAT case.