|Test||FATTY ACID PROFILE, COMPREHENSIVE (C8-C26), SERUM|
|Methodology||Gas Chromatography / Mass Spectrometry, (GC-MS) Stable Isotope Dilution Analysis|
|Description||Used to monitor patients undergoing diet therapy for mitochondrial or peroxisomal fatty acid oxidation disorders. Treatment of essential fatty acid deficiency depends on the cause of the disorder and may include nutritional supplementation of essential fatty acids, linoleic acid (C18:2w6) and alpha-linolenic acid (C18:3w3).|
|Specimen||Draw blood in either a plain, red-top tube or serum gel tube following an overnight (12 - 24 hour) fast. Patient must not consume any alcohol for 24 hours before the specimen is drawn. Spin down and send 0.5 mL (minimum: 0.2 mL) of serum FROZEN in plastic vial on dry ice.
|Reference Values||See "Fatty Acid Reference Values."|
|Analytic Time||3 Days|
|Day(s) Test Set Up||Monday through Friday|