Carnitine, total and free

Alphabetical Test listing

Carnitine, total and free-13582

  
Carnitine, total and free
  
13582
  
LAB13582
  
CRN
  
Carnitor®/Carnitor® SF
L-Carnitine®
Levocarnitine
  

The analysis of carnitines is indicated in patients who fail to thrive, hypotonia, chronic muscle weakness, cardiomyopathy, intermittent episodes of weakness and encephalopathy, renal Fanconi's syndrome, hypoglycemic episodes, metabolic acidosis, or hypo ketotic dicarboxylic acidurias.

  
Serum
  
  
2.5 mL
  
0.3 mL
  
  1. Allow sample to clot for a minimum of 30 minutes
  2. Spin within two (2) hours of sample collection
  3. Transfer serum to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp)
  4. Freeze as soon as possible

 

  
Heparin plasma
  

Red serum vial/tube - 5 mL

Dk green heparin (Li or Na), no gel

 

 

  

Red:

  1. Allow sample to clot 
  2. Spin
  3. Transfer serum to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp), labelled as serum, within two (2) hours of sample collection
  4. Freeze as soon as possible

Dk green:

  1. Spin
  2. Transfer plasma to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp), labelled as the appropriate plasma type, within two (2) hours of sample collection
  3. Freeze as soon as possible
  

Frozen - 14 days

  

Specimen not frozen

  
LabCorp Burlington (706500): R-LC
  
Mo - Fr
  
3 - 6 days
  

High-pressure liquid chromatography/tandem mass spectrometry (LC/MS-MS)

  

Carnitine total: 27 - 73 umol/L
Carnitine free:  20 - 55 umol/L
Esterified/Free:  0 - 0.9

  
82379
  
Result 14288-5
  
03/27/2019
  
05/20/2019
  
02/19/2021