Carnitine, total and free-13582

Test info

  
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.

Specimen

  
Serum
  
  
2.5 mL
  
0.3 mL
  

Immediately following collection, thoroughly mix sample by gently inverting 5 times

  
  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

 

 

  

Dk green:

Immediately following collection, mix sample thoroughly by gently inverting 8 - 10 times to prevent clotting

  

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

Performance

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

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

Clinical and Interpretive info

  

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

Billing

  
82379
  
Result 14288-5

Tracking

  
03/27/2019
  
05/20/2019
  
02/19/2021