Carnitine, Total and Free
Also known as: Carnitor®/Carnitor® SF, L-Carnitine®, Levocarnitine
Use
The analysis of carnitines is indicated in patients who exhibit the following: failure to thrive, hypotonia, chronic muscle weakness, cardiomyopathy, intermittent episodes of weakness and encephalopathy, renal Fanconi's syndrome, hypoglycemic episodes, metabolic acidosis, or hypoketotic dicarboxylic acidurias.
Special Instructions
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.
Limitations
This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.
Methodology
Mass Spectrometry
Biomarkers
LOINC Codes
- 79285-3
- 14288-5
- 14286-9
- 40869-0
Result Turnaround Time
3-6 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
2.5 mL
Minimum Volume
0.2 mL
Container
Red-top tube, gel-barrier tube, or green-top (heparin) tube
Collection Instructions
Transfer separated serum or plasma to a plastic transport tube and freeze.
Storage Instructions
Freeze.
Causes for Rejection
Specimen not frozen
Stability Requirements
| Temperature | Period |
|---|---|
| Frozen | 14 days |