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Acylcarnitine Profile, Serum/Plasma

Test ID: ACYLCAR

Test

Aliases/Synonyms

Acyl Carnitine Profile; Carnitines

Method

Tandem Mass Spectrometry

Method Description

Quantitation of acylcarnitines follwing Butanolic-HCI derivatization, measurement by tandem mass spectrometry.

Report Includes

Carnitine - Free; Carnitine - Total; Acylcarnitine speciation

Specimens

Serum; Plasma

Test Location

Hospital for Sick Children, 555 University Avenue, Toronto ON M5G 1X8

Test Version

11-Oct-2024

Specimen

Specimens

Serum; Plasma

Collection Containers

Preferred

Red Top (no additive)

Acceptable

Green Top (Sodium Heparin)

Sample Volume

1 mL

Minimum Volume

0.6 mL

Collection & Handling

Handling Information

Store and send frozen.

Additional Information

Please provide age, gender and clinical history to facilitate interpretation of analytical findings and recommendation of further testing or consultation.

Stability

Refrigerated 1 Day
Frozen >1 Day

Test Version

11-Oct-2024

Performance / Interpretation

Method

Tandem Mass Spectrometry

Method Description

Quantitation of acylcarnitines follwing Butanolic-HCI derivatization, measurement by tandem mass spectrometry.

Turnaround Time

7 days

Results

Name Units Reference Range Conversion Factor
Free Carnitine µmol/L
  • Up to 15 d: 12 - 60
  • Over 15 d: 26 - 60
Total Carnitine µmol/L
  • Up to 15 d: 23 - 84
  • Over 15 d: 32 - 84
Acylcarnitine Species µmol/L
  • Interpretation provided on report
  • See table for reference ranges.

Test Location

Hospital for Sick Children, 555 University Avenue, Toronto ON M5G 1X8

Test Version

11-Oct-2024

Interface / Setup

HL7 Interface Codes

Order Code Result Codes Units
ACYLCAR 2790Free Carnitine umol/L
2791Total Carnitine umol/L
29649C0 (FC) umol/L
29650Acetyl C2 umol/L
29651Propionyl C3 umol/L
29652Butyryl/Isobutyryl C4 umol/L
29653Tiglyl C5:1 umol/L
29654Isovaleryl/2Methylbutyryl C5 umol/L
29655Hexanoyl C6 umol/L
29656OHIsoval/MethylOHbutyryl C5OH umol/L
29657Octenoyl C8:1 umol/L
29658Octanoyl C8 umol/L
29659Malonyl C3DC umol/L
29660Decenoyl C10:1 umol/L
29661Decanoyl C10 umol/L
29662Methylmalonyl/Succinyl C4DC umol/L
29663Glutaryl/3OHDecanoyl C5DC umol/L
29664Dodecenoyl C12:1 umol/L
29665Dodecanoyl C12 umol/L
29666Adipyl/3MeGlutaryl C6DC-C53MDC umol/L
296673OHDodecanoyl C12OH umol/L
29668Tetradecdienoyl C14:2 umol/L
29669Tetradecenoyl C14:1 umol/L
29670Tetradecanoyl C14 umol/L
296713OHTetradecanoyl C14:1OH umol/L
296723OHTetradecanoyl C14OH umol/L
29673Palmitoleoyl C16:1 umol/L
29674Palmitoyl C16 umol/L
296753OHPalmitoleoyl C16:1OH umol/L
296763OHPalmitoyl C16OH umol/L
29677Linoleoyl C18:2 umol/L
29678Oleoyl C18:1 umol/L
29679Stearoyl C18 umol/L
296803OHLinoleoyl C18:2OH umol/L
296813OHOleoyl C18:1OH umol/L
64610Acylcarnitines, Comment

Test Version

11-Oct-2024