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81939M
FATTY ACID PROFILE, MITOCHONDRIAL (C8-C18), SERUM

Test Code 81939M 
Test FATTY ACID PROFILE, MITOCHONDRIAL (C8-C18), SERUM 
Methodology Gas Chromatography / Mass Spectrometry (GC-MS), Stable Isotope Dilution Analysis 
Description Useful for diagnosis of inborn errors of mitochondrial fatty acid oxidation, including deficiencies of medium-chain acyl-Co-A dehydrogenase, long-chain 3-hydroxyacyl-Co-A dehydrogenase, very long-chain acyl-Co-A dehydrogenase, and glutaric acidemia type 2. 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 a plain, red-top tube or serum gel 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.

NOTE:
1. PATIENT'S AGE IS REQUIRED ON REQUEST FORM FOR PROCESSING.
2. Include information regarding treatment, family history, and tentative diagnosis. 

Reference Values See "Fatty Acid Reference Values.' 
Analytic Time 3 Days 
Day(s) Test Set Up Monday through Friday 
CPT Code(s) 82544  

Special Instructions