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| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Fatty Acid Profile, Essential
Test CodeFAPEP
Alias/See Also
Long Chain Fatty Acids
Essential Fatty Acids
Essential Fatty Acids
CPT Codes
82544
Includes
C12-C22
Preferred Specimen
1.0 mL of whole blood (0.5 mL of plasma)
Minimum Volume
0.4 mL of whole blood (0.15 mL of plasma)
Instructions
Fasting-overnight (12-14 hour). Patient must not consume any alcohol for 24 hours before the specimen is drawn. Spin specimen down within 45 minutes of draw. Send specimen in plastic vial.
Note: 1. Patient's age is required.
2. Include information regarding treatment, family history, and tentative diagnosis.
For nutritional assessment, a 12 to 14 hour fast is required; however, infants or persons suspected of having a fatty acid oxidation disorder should not fast before testing owing to the possibility of acute metabolic decompensation. Instead, collect the specimen after the longest fast possible, just before feeding.
Note: 1. Patient's age is required.
2. Include information regarding treatment, family history, and tentative diagnosis.
For nutritional assessment, a 12 to 14 hour fast is required; however, infants or persons suspected of having a fatty acid oxidation disorder should not fast before testing owing to the possibility of acute metabolic decompensation. Instead, collect the specimen after the longest fast possible, just before feeding.
Transport Container
Serum Separator (gold top) or No additive Red Top
Transport Temperature
Refrigerated:
Specimen Stability
Refrigerated: 72 hours
Frozen: 92 days
Frozen: 92 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Lipemia
Methodology
Gas Chromatography-Mass Spectrometry (GC-MS) Stable Isotope Dilution Analysis
Setup Schedule
Monday through Friday; 7a.m.
Report Available
4 days (not reported Sat or Sun)
Clinical Significance
Evaluating the nutritional intake and intestinal absorption of essential fatty acids.
Identifying deficiency of essential and other nutritionally beneficial fatty acids.
Monitoring treatment of patients with essential fatty acid deficiencies that are receiving linoleic acid (C182w6) and alpha-linolenic acid (C18:3w3).
Identifying deficiency of essential and other nutritionally beneficial fatty acids.
Monitoring treatment of patients with essential fatty acid deficiencies that are receiving linoleic acid (C182w6) and alpha-linolenic acid (C18:3w3).
Performing Laboratory
Mayo Medical Laboratories
