ARUP's Laboratory Test Directory

Carnitine Panel : 0081110
[ image for: Patient History For Biochemical Genetics]
Patient History For Biochemical Genetics
  


Mnemonic: CARNPAN

Methodology: Tandem Mass Spectrometry
Performed: Tue, Thu, Sat
Reported: 2-7 days
Specimen Required: Collect: Green (sodium or lithium heparin). Also acceptable: Plain red.

Specimen Preparation: Separate plasma or serum from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum or plasma to an ARUP Standard Transport Tube and freeze immediately. (Min: 0.2 mL) Avoid hemolysis.

Storage/Transport Temperature: CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.

Remarks: Clinical information is needed for appropriate interpretation. Additional required information includes age, gender, diet (e.g., TPN therapy), drug therapy, and family history. Biochemical Genetics Patient History Form is available on the ARUP Web site at http://www.aruplab.com/patienthistory or by contacting ARUP Client Services.

Unacceptable Conditions: Room temperature specimens. Specimens that have been refrigerated for greater than 12 hours.

Stability (collection to initiation of testing): After separation from cells: Ambient: Unacceptable; Refrigerated: 12 hours; Frozen: 1 month

Reference Interval:
Reports include age appropriate reference interval and interpretation.
Test Number Components Reference Interval
0080067Carnitine, Total Effective May 16, 2011
Age Total Carnitine
1-31 days 21-83 µmol/L
32 days-12 months 38-73 µmol/L
13 months-6 years 35-90 µmol/L
7 years-20 years 31-78 µmol/L
21 years or older 34-86 µmol/L
0080065Carnitine, Free Effective May 16, 2011
Age Free Carnitine
1-31 days 15-55 µmol/L
32 days-12 months 29-61 µmol/L
13 months-6 years 25-55 µmol/L
7 years-20 years 22-63 µmol/L
21 years or older 25-60 µmol/L
Carnitine, Esterified By report
Carnitine, Esterified/Free Ratio By report
Acylcarnitine By report

Interpretive Data:

See Compliance Statement B: www.aruplab.com/CS
Note: The concentration of esterified carnitine is derived from a mathematical calculation using free and total carnitine.
CPT Code(s): 82017; 82379