Specimen:

Plasma

Collection Medium:

Minimum:

Preferred Minimum:  4 mL sodium heparin whole blood
                    to yield 0.5 mL plasma

Absolute Minimum:  1 mL sodium heparin whole blood
                   to yield 0.1 mL plasma

Analytic Time:

4 days

Reference Range:

Acetylcarnitine, C:2
1-7 days         2.14-15.89 nmol/mL
8 days-7 years   2.00-27.57 nmol/mL
> or = 8 years   2.00-17.83 nmol/mL

Propionylcarnitine, C3
1-7 days         < 0.55 nmol/mL
8 days-7 years   < 1.78 nmol/mL
> or = 8 years   < 0.88 nmol/mL

Iso-/Butyrylcarnitine, C4
1-7 days   < 0.46 nmol/mL
8 days-7 years   < 1.06 nmol/mL
> or = 8 years   < 0.83 nmol/mL

Isovaleryl-/2-Methylbutyrylcarnitine, C5
1-7 days         < 0.38 nmol/mL
8 days-7 years   < 0.63 nmol/mL
> or = 8 years   < 0.51 nmol/mL

Hexanoylcarnitine, C6
1-7 days         < 0.14 nmol/mL
8 days-7 years   < 0.23 nmol/mL
> or = 8 years   < 0.17 nmol/mL

3-OH-Hexanoylcarnitine, C6-OH
1-7 days         < 0.08 nmol/mL
8 days-7 years   < 0.19 nmol/mL
> or = 8 years   < 0.09 nmol/mL

Octenoylcarnitine, C8:1
1-7 days         < 0.48 nmol/mL
8 days-7 years   < 0.91 nmol/mL
> or = 8 years   < 0.88 nmol/mL

Octanoylcarnitine, C8
1-7 days         < 0.19 nmol/mL
8 days-7 years   < 0.45 nmol/mL
> or = 8 years   < 0.78 nmol/mL

Decenoylcarnitine, C10:1
1-7 days         < 0.25 nmol/mL
8 days-7 years   < 0.46 nmol/mL
> or = 8 years   < 0.47 nmol/mL

Decanoylcarnitine, C10
1-7 days         < 0.27 nmol/mL
8 days-7 years   < 0.91 nmol/mL
> or = 8 years   < 0.88 nmol/mL

Glutarylcarnitine, C5-DC
1-7 days         < 0.06 nmol/mL
8 days-7 years   < 0.10 nmol/mL
> or = 8 years   < 0.11 nmol/mL

Dodecenoylcarnitine, C12:1
1-7 days         < 0.19 nmol/mL
8 days-7 years   < 0.37 nmol/mL
> or = 8 years   < 0.35 nmol/mL

Dodecanoylcarnitine, C12
1-7 days         < 0.18 nmol/mL
8 days-7 years   < 0.35 nmol/mL
> or = 8 years   < 0.26 nmol/mL

3-OH-Dodecanoylcarnitine, C12-OH
1-7 days         < 0.06 nmol/mL
8 days-7 years   < 0.09 nmol/mL
> or = 8 years   < 0.08 nmol/mL

Tetradecadienoylcarnitine, C14:2
1-7 days         < 0.09 nmol/mL
8 days-7 years   < 0.13 nmol/mL
> or = 8 years   < 0.18 nmol/mL

Tetradecenoylcarnitine, C14:1
1-7 days         < 0.16 nmol/mL
8 days-7 years   < 0.35 nmol/mL
> or = 8 years   < 0.24 nmol/mL

Tetradecanoylcarnitine, C14
1-7 days         < 0.11 nmol/mL
8 days-7 years   < 0.15 nmol/mL
> or = 8 years   < 0.12 nmol/mL

3-OH-Tetradecenoylcarnitine, C14:1-OH
1-7 days         < 0.06 nmol/mL
8 days-7 years   < 0.18 nmol/mL
> or = 8 years   < 0.13 nmol/mL

3-OH-Tetradecanolycarnitine, C14-OH
1-7 days         < 0.04 nmol/mL
8 days-7 years   < 0.05 nmol/mL
> or = 8 years   < 0.08 nmol/mL

Hexadecenoylcarnitine, C16:1
1-7 days         < 0.15 nmol/mL
8 days-7 years   < 0.21 nmol/mL
> or = 8 years   < 0.10 nmol/mL

Hexadecanoylcarnitine, C16
1-7 days         < 0.36 nmol/mL
8 days-7 years   < 0.52 nmol/mL
> or = 8 years   < 0.23 nmol/mL

3-OH-Hexadecenoylcarnitine, C16:1-OH
1-7 days         < 0.78 nmol/mL
8 days-7 years   < 0.36 nmol/mL
> or = 8 years   < 0.06 nmol/mL

3-OH-Hexadecanoylcarnitine, C16-OH
1-7 days         < 0.10 nmol/mL
8 days-7 years   < 0.07 nmol/mL
> or = 8 years   < 0.06 nmol/mL

Linoleylcarnitine, C18:2
1-7 days         < 0.12 nmol/mL
8 days-7 years   < 0.31 nmol/mL
> or = 8 years   < 0.24 nmol/mL

Oleylcarnitine, C18:1
1-7 days         < 0.25 nmol/mL
8 days-7 years   < 0.45 nmol/mL
> or = 8 years   < 0.39 nmol/mL

Stearoylcarnitine, C18
1-7 days         < 0.10 nmol/mL
8 days-7 years   < 0.12 nmol/mL
> or = 8 years   < 0.14 nmol/mL

3-OH-Linoleylcarnitine, C18:2-OH
1-7 days         < 0.04 nmol/mL
8 days-7 years   < 0.06 nmol/mL
> or = 8 years   < 0.06 nmol/mL

3-OH-Oleylcarnitine, C18:1-OH
1-7 days         < 0.03 nmol/mL
8 days-7 years   < 0.04 nmol/mL
> or = 8 years   < 0.06 nmol/mL

Comments:

Patient's age is required on the request form for processing.

Methodology:

Electrospray Tandem Mass Spectrometry (MS/MS)

CPT Code:

82017