Test Overview
Method
Liquid chromatography-tandem mass spectrometry (LC-MS/MS)
Method Description
Quantitation using non-derivatized method (LC-MS/MS).
Result Included
Free Carnitine; Total Carnitine
Specimen
Specimen Type
SerumPlasma
Containers
Preferred Containers
Red Top (no additive)
Acceptable Containers
Green Top (Sodium Heparin); Green Top (Lithium Heparin)
Volume
Sample Volume
1 mL
Minimum Volume
0.5 mL
Collection & Handling
Handling Information
Separate within 1 hour of collection. Store and send frozen.
Additional Information
Please provide age, gender and clinical history to facilitate interpretation of analytical findings and recommendation of further testing or consultation.
Stability
| Refrigerated | Frozen |
|---|---|
| 1 day | >1 Day |
Performance & Interpretation
Turnaround Time
12 days
Results
Name
Units
Reference Range
Conversion
-
Free Carnitineµmol/L<16 d: 12.0 - 60.0
≥16 d: 26.0 - 60.0 -
Total Carnitineµmol/L<16 d: 23.0 - 84.0
≥16 d: 32.0 - 84.0
Referral Location
Canada
Interface & Setup
HL7 Interface Codes
| Order Code | Result Name | Result Codes | Units |
|---|---|---|---|
| CARNI | Free Carnitine | 2790 | umol/L |
| Total Carnitine | 2791 | umol/L |
Test Version
Last Updated
2023-06-26