Very long chain fatty acids (VLCFA) are fatty acids with aliphatic tails longer than 22 carbons. Assay includes pristanic and phytanic acid quantitation. Clinical indication for requesting: investigation of peroxisomal disorders.
Tube
06 (HP) – Heparin No Gel
ID
Tests&Tubes0254
Additional Information
Serum or EDTA plasma also acceptable.
Turn Around
Turnaround time stated by Sheffield Children’s Hospital: 3 to 6 weeks.
Send to
Blood Sciences LGI
(Test referred to: Sheffield Children’s Hospital)
Contact
For further details please contact Ä¢¹½tvÊÓƵ Pathology customer services: [email protected].
Collection Con
Minimum Volume: 0.5mL. Instructions to lab: Lithium heparin plasma, EDTA plasma or serum all acceptable. Centrifuge sample, separate plasma/serum and store at -20.
Sample REQ
Blood
Ref. Range Notes
Docosanoate (C22) 15 – 112 umol/L;
Tetracosanoate (C24) 14 – 80 umol/L;
Hexacosanoate (C26) 0.33 -1.50 umol/L;
C24/C22 0.44 – 0.97;
C26/C22 0.005 – 0.030;
Phytanate 0.2 – 19.3 umol/L;
Pristanate < 1.88 umol/L.
Units
umol/L