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Carnitine, Free and Total

Specimen:

Collect

  • One Green Top (Li Heparin)

Also Acceptable:
  • One Green Top (Na Heparin)
  • One Red Top

Submit

  • 0.5 mL (Min:0.2 mL) Plasma . Submit Frozen. Submit in a Standard Transport Tube.

Also Acceptable:
  • 0.5 mL (Min:0.2 mL) Serum . Submit Frozen. Submit in a Standard Transport Tube.

Special Handling

  • Avoid Repeated Freeze/Thaw Cycles
  • Critical Frozen
  • Separate aliquot required for each frozen test ordered
  • Separate from cells ASAP

Rejection Criteria

  • Room temperature specimens. Specimens that have been refrigerated for greater than 12 hours.

Stability

Ambient: Unacceptable; Refrigerated: 12 Hour(s); Frozen: 1 Month(s); Incubated: Unacceptable

Methodology

  • Tandem Mass Spectrometry

Performed

Tuesday, Wednesday, Thursday, Friday, Saturday

Reported

2-5 Day(s)

CPT Codes

  • 83789

Interpretive Data

Please see report for interpretive data.

Components

  • 90321 - CARNITINE, FREE
  • 90322 - CARNITINE, TOTAL
  • 90323 - CARNITINE, ESTER
  • 90324 - E/F RATIO
Last Updated: December 11, 2024 @ 10:13 am

Disclaimer:

It is preferable to locate tests on the website and not rely on printed test information, which may soon be out of date.
Updated test information can only be guaranteed by using this website.

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Common Lab Definitions

  • Serum 
  • Plasma 
  • STT