Ordering Recommendation

Identification of patients with essential fatty acid deficiency, evaluation of nutritional status, and diet monitoring. For evaluation of long-term nutritional status and in cases when fasting is not possible (ie, infants, patients at risk for metabolic derangement), consider Fatty Acids Profile, Essential Red Blood Cells (3003086).

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation

Patient must fast overnight for 12-14 hours. Patient must not consume any alcohol for 24 hours prior to collection.


Plasma: Green (sodium or lithium heparin) or Lavender (EDTA).
Plain Red or Serum Separator Tube (SST).

Specimen Preparation

Separate from cells ASAP or within 45 minutes of draw. Transfer 0.5 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.15 mL) Freeze immediately.

Storage/Transport Temperature


Unacceptable Conditions

Grossly hemolyzed, lipemic, or nonfasting specimens.


Patient age is required on the test request form. Include information regarding treatment, family history, and tentative diagnosis.


Ambient: 48 hours; Refrigerated: 1 week; Frozen: 3 months


Gas Chromatography-Mass Spectrometry (GC-MS)


Mon, Wed, Fri


4-10 days

Reference Interval

By Report

Interpretive Data

This test does not screen for disorders of peroxisomal biogenesis/function.

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Compliance Category

Laboratory Developed Test (LDT)


Hotline History


CPT Codes



Component Test Code* Component Chart Name LOINC
2013519 Interpretation, Fatty Acids Profile SP 49262-9
2013520 Lauric Acid, C12:0 35150-2
2013521 Myristic Acid, C14:0 35157-7
2013522 Palmitoleic Acid, C16:1w7 35162-7
2013523 Hexadecenoic Acid, C16:1w9 35155-1
2013524 Palmitic Acid, C16:0 35161-9
2013525 g-Linolenic Acid, C18:3w6 35163-5
2013526 a-Linolenic Acid, C18:3w3 35164-3
2013527 Linoleic Acid, C18:2w6 35165-0
2013528 Oleic Acid, C18:1w9 35166-8
2013529 Vaccenic Acid, C18:1w7 35167-6
2013530 Stearic Acid, C18:0 35149-4
2013531 EPA, C20:5w3 35173-4
2013532 Arachidonic Acid, C20:4w6 35168-4
2013533 Mead Acid, C20:3w9 35172-6
2013534 h-g-Linolenic C20:3w6 35171-8
2013535 Arachidic Acid, C20:0 35169-2
2013536 DHA, C22:6w3 35174-2
2013537 DPA, C22:5w6 35181-7
2013538 DPA, C22:5w3 35180-9
2013539 DTA, C22:4w6 35182-5
2013540 Docosenoic Acid, C22:1 35160-1
2013541 Nervonic Acid, C24:1w9 35170-0
2013542 Triene Tetraene Ratio 35411-8
2013543 Total Saturated Acid 35175-9
2013544 Total Monounsaturated Acid 35176-7
2013545 Total Polyunsaturated Acid 35177-5
2013546 Total w3 35178-3
2013547 Total w6 35179-1
2013548 Total Fatty Acids 24461-6
2013549 EER Fatty Acids Profile, Essential SP 11526-1
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.


  • Essential Fatty Acids
  • Omega 3
  • Omega 6
  • Omega 7
  • Omega 9
  • Omega Fatty Acids
  • Polyunsaturated Fatty Acids
Fatty Acids Profile, Essential Serum or Plasma