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Acylcarnitine, Plasma
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
Test Code
ACYLCP
Alias/See Also
14531
CPT Codes
82017
Preferred Specimen
1 mL frozen plasma collected in sodium heparin (green-top) tube
Patient Preparation
Patient should be in a well-fed state
Minimum Volume
0.5 mL frozen serum
Other Acceptable Specimens
Serum
Instructions
Collect blood sample in sodium heparin (green-top) tube. Separate plasma by centrifugation ASAP. Avoid hemolysis. Remove plasma and place in plastic tube. Freeze immediately after separation. Date of birth is required.
Transport Temperature
Frozen
Specimen Stability
Room Temperature = Unacceptable
Refrigerated = Unacceptable
Frozen = 28 days
Refrigerated = Unacceptable
Frozen = 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Received room temperature • Received refrigerated
Methodology
Chromatography/Mass Spectrometry
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
A.M. Sets up 3 days a week.
Report Available
Reports in 5 to 6 days.
Limitations
A low carnitine level may mask a disease state.
Reference Range
See Laboratory Report
Clinical Significance
Elevation of one or more acylcarnitines is diagnostic for an organic aciduria or a fatty disorder. A low carnitine level may mask a disease state.
Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130
Last Updated: May 16, 2024
