Ordering Recommendation
Aids in identification of patients with essential fatty acid deficiency, evaluation of nutritional status, and diet monitoring.
Mnemonic
Methodology
Gas Chromatography-Mass Spectrometry
Performed
Varies
Reported
7-10 days
New York DOH Approval Status
Specimen Required
Green (Sodium Heparin), Lavender (K2EDTA), Yellow (ACD Solution A), or Protease Inhibitor tube (PPACK; Phe-Pro-Arg-chloromethylketone) (ARUP supply #49662), available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787. A winged collection set must be used.
DO NOT FREEZE. Transport 6 mL whole blood. (Min: 2 mL)
Refrigerated.
Gross hemolysis, frozen whole blood.
Patient age is required on the test request form. Include information regarding treatment, family history, and tentative diagnosis.
Ambient: 24 hours; Refrigerated: 7 days; Frozen: Unacceptable
Reference Interval
By Report
Interpretive Data
This test does not screen for disorders of peroxisomal biogenesis/function.
Laboratory Developed Test (LDT)
Note
Hotline History
CPT Codes
82542
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
3003087 | Interpretation, Fatty Acids Profile RBC | 75114-9 |
3003088 | Myristic Acid, C14:0, RBC | 75103-2 |
3003089 | Palmitic Acid, C16:0, RBC | 75115-6 |
3003090 | Stearic Acid, C18:0, RBC | 75118-0 |
3003091 | Arachidic Acid, C20:0, RBC | 75108-1 |
3003092 | Palmitoleic Acid, C16:1w7, RBC | 75111-5 |
3003093 | Hexadecenoic Acid, C16:1w9, RBC | 78346-4 |
3003094 | Vaccenic Acid, C18:1w7, RBC | 78352-2 |
3003095 | a-Linolenic Acid, C18:3w3, RBC | 75113-1 |
3003096 | EPA, C20:5w3, RBC | 75097-6 |
3003097 | DPA, C22:5w3, RBC | 78347-2 |
3003098 | DHA, C22:6w3, RBC | 75095-0 |
3003099 | Linoleic Acid, C18:2w6, RBC | 75117-2 |
3003100 | g-Linolenic Acid, C18:3w6, RBC | 75119-8 |
3003101 | h-g-Linolenic C20:3w6, RBC | 79704-3 |
3003102 | Arachidonic Acid, C20:4w6, RBC | 75110-7 |
3003103 | DTA, C22:4w6, RBC | 75112-3 |
3003104 | DPA, C22:5w6, RBC | 78348-0 |
3003105 | Oleic Acid, C18:1w9, RBC | 75102-4 |
3003106 | Mead Acid, C20:3w9, RBC | 75106-5 |
3003107 | Docosenoic Acid, C22:1, RBC | 78345-6 |
3003108 | Nervonic Acid, C24:1w9, RBC | 75098-4 |
3003109 | Triene Tetraene Ratio, RBC | 99616-5 |
3003110 | Total Saturated Acid, RBC | 99617-3 |
3003111 | Total Monounsaturated Acid, RBC | 99618-1 |
3003112 | Total Polyunsaturated Acid, RBC | 99619-9 |
3003113 | Total w3, RBC | 99620-7 |
3003114 | Total w6, RBC | 99621-5 |
3003115 | Total Fatty Acids, RBC | 75100-8 |
3003116 | EER Fatty Acids Profile, Essential RBC | 11502-2 |