Laboratory:
Sendout
Referral Laboratory:
Mayo POX (81369)
MiChart Code:
Fatty Acids Profile, Peroxisomal (Mayo)
Soft Order Code:
POX
Synonyms:
Fatty Acids, Very Long Chain Long Chain Fatty Acids
Peroxisomal Panel Phytanatic Acid
Phytanic Acid Pristanic Acid
Very Long Chain Fatty Acids VLFA
Container:
Red top or SST tube
Normal Volume:
0.5 mL fasting serum
Minimum Volume:
0.2 mL fasting serum
Days Set Up:
Monday - Friday
Analytic Time:
3 - 6 days
Reference Range:
*Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Age specific reference ranges provided with report.
Test Usage:
Investigation of adrenoleukodystrophy, adrenomyeloneuropathy (AMN), and Zellweger's syndrome, diagnosis of Refsum's disease, or to aid in assessment of peroxisomal function.
Test Limitations:
Liver diseases, ketonemia, and starvation may compound interpretation of metabolite patterns in young patients.
Test Methodology:
Stable Isotope Dilution Gas Chromatography / Mass Spectrometry (GC/MS)
Additional Information:
Test sent to Mayo Medical Laboratories.
LOINC:
43674-1
CPT Code:
82726
Fee Code:
32122
Alternate Testing Site:
Physicians requesting testing to be sent to Kennedy - Krieger Labs must have prior approval from CD Sendout Laboratory (the majority of these requests are from the Peds Genetics clinic). Order SENDOUT, Template VLCFA, Specimen requirement is 3 mL EDTA whole blood fasting or preprandial. A single EDTA whole blood specimen may be used for both Kennedy Krieger Red Blood Cell Plasmalogen and Plasma Very Long Chain Fatty Acids (CDM 20451) assays. [rev 3/04]
Collection:
Collect specimen in red top or SST tube from a fasting patient (12 - 14 hour fast). Centrifuge and aliquot serum into a plastic tube and freeze. Patient must not consume alcohol for 24 hours before collection of specimen.
Test ID:
602