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Collection Requirements
Source: blood
Container(s):
- Preferred: Red
- Acceptable: Sodium heparin green
Volume: 1 mL in vacutainer
Turn Around Time
3-7 days
Testing performed Wednesday.
Must be received in the Toxicology Lab by 0700 to be included in
the batch.
Results are reported each Friday
Availability
Routine
Includes
Total carnitine, free carnitine, and acylcarnitine
Lab Processing Instructions
Specimen: plasma or serum
Spin, separate, and refrigerate
Performing Laboratory
Adele Hall
Adele Hall Lab Section
Biochemical Genetics
Instrumentation/Methodology
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)
Reference Ranges
| Age | Total Carnitine (uM) | Free Carnitine (uM) | Acylcarnitine (uM) | AC/FC Ratio |
|---|---|---|---|---|
| <1 day | 23 - 68 | 12 - 36 | 7 - 37 | 04 - 1.7 |
| 2-7 days | 17 - 41 | 10 - 21 | 3 - 24 | 0.2 - 1.4 |
| 8 days - 31 days | 19 - 59 | 12 - 46 | 4 - 15 | 0.1 - 0.7 |
| 32 days - 12 months | 38 - 68 | 27 - 49 | 7 - 19 | 0.2 - 0.5 |
| 13 months - 6 years | 35 - 84 | 24 - 63 | 4 - 28 | 0.1 - 0.8 |
| 7-10 years | 28 - 83 | 22 - 66 | 3 - 32 | 0.1 - 0.9 |
| 11-17 years | 34 - 77 | 22 - 65 | 4 - 29 | 0.1 - 0.9 |
| >18 years | 34 - 78 | 25 - 54 | 5 - 30 | 0.1 - -0.8 |
CPT
82379