Carnitine -- total & free (Urine)
- LIS Mnemonic: CARU
Collect
Random Urine Container
Volume Required
5-10 mL
Minimum Required
5 mL
Transport
Room temperature
Stability
8 hours
Processing
Refrigerate if delay in transport > 8 hours. Freeze if delay > 24 hours. If sending specimen from outside CHOP, send on dry ice by overnight courier (Mon-Thurs only).
Unacceptable conditions
room temperature >
Days Performed
Tuesday and Friday
Reported
1 week
Reflex Testing
N/A
CPT
82379
Methodology
Tandem Mass Spec
Remarks
A request for a plasma carnitine must accompany a urine carnitine request otherwise lab will cancel request for test.
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