Carnitine, Total and Free

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Turnaround Time: 3 - 6 days
CPT Code:


Test Type: 2.5 mL Serum OR plasma
Stability Time:




14 days


The analysis of carnitines is indicated in patients who fail to thrive, hypotonia, chronic muscle weakness, cardiomyopathy, intermittent episodes of weakness and encephalopathy, renal Fanconi's syndrome, hypoglycemic episodes, metabolic acidosis, or hypo ketotic dicarboxylic acidurias.

This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.

Collection Details:

Collection Instructions:

Red-top tube, gel-barrier tube, OR green-top (heparin) tube.

Transfer separated serum or plasma to a plastic transport tube and freeze. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.