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Back to Test Catalogue
Test ID: TFAP B

Total Fatty Acids Profile, Blood

Orderable by Ontario ND

Test Overview

Method

Gas chromatrography-flame ionization detection (GC-FID)

Result Included

Myristic acid C14:0; Myristoleic acid C14:1; Pentadecanoic acid C15:0; Palmitic acid C16:0; Palmitoleic acid C16:1; Stearic acid C18:0; Oleic acid C18:1; Linoleic acid C18:2n6; Alpha-Linolenic acid C18:3n3; Gamma-Linolenic acid C18:3n6; Arachidic acid C20:0; Eicosenoic acid C20:1; Eicosadienoic acid C20:2n6; Eicosatrienoic acid C20:3n3; Dihomo-Gamma-Linolenic acid; Arachidonic Acid (C20:4N6); Eicosapentaenoic Acid C20:5n-3; Behenic acid C22:0; Docosadienoic acid C22:2n6; Adrenic acid C22:4n6; Docosapentaenoic Acid C22:5n-3; Docosapentaenoic acid n6 C22:6; Docasahexaenoic Acid C22:6n-3; Lignoceric acid C24:0; Nervonic acid C24:1; Total Omega-3 Fatty Acids; Total Omega-6 Fatty Acids; EPA + DHA (20:5n3+22:6n3); OM3/OM6 Ratio; OM6/OM3 Ratio; AA/EPA Ratio

Specimen

Containers

Preferred Containers

Lavender top EDTA whole blood

Volume

Sample Volume

5 mL

Minimum Volume

1 mL

Collection & Handling

Handling Information

Store and send cold.

Stability

Refrigerated
2 months

Rejection Criteria

Criteria Specification
Specimen Serum

Performance & Interpretation

Turnaround Time

10 days

Results

Name
Units
Reference Range
Conversion
  1. (All reported fatty acids)
    % weight
    None
  2. Docasahexaenoic Acid C22:6n-3
    % weight
    None

    Comment

    DHA (Docosahexaenoic Acid) scores of >4.50 are associated with low risk of CHD.

  3. Total Omega-3 Fatty Acids
    % weight
    None

    Comment

    Total Omega-3 scores of > 7.20 are associated with low risk of CHD

  4. Total Omega-6 Fatty Acids
    % weight
    None

    Comment

    Interpretive guidelines for Omega-6 scores have not been established.

  5. EPA + DHA (20:5n3+22:6n3)
    % weight
    None

    Comment

    EPA (Eicosapentaenoic Acid) plus DHA scores of > 4.60 are associated with low risk of fatal heart disease.

  6. OM3/OM6 Ratio

    Comment

    An Omega-3/Omega-6 score of 1:3 is consistent with anti-inflammation.

  7. AA/EPA Ratio

    Comment

    Interpretive guidelines for the ratio of AA (Arachidonic Acid) to EPA have not been established.

Referral Location

Canada

Interface & Setup

HL7 Interface Codes

Order Code Result Name Result Codes Units
TFAP B Myristic acid C14:0 63261
Myristoleic acid C14:1 63262
Pentadecanoic acid C15:0 63263
Palmitic acid C16:0 63264
Palmitoleic acid C16:1 63265
Stearic acid C18:0 63266
Oleic acid C18:1 63267
Linoleic acid C18:2n6 63268 % Weight
Alpha-Linolenic acid C18:3n3 63269 % Weight
Gamma-Linolenic acid C18:3n6 63270 % Weight
Arachidic acid C20:0 63271 % Weight
Eicosenoic acid C20:1 63272 % Weight
Eicosadienoic acid C20:2n6 63273 % Weight
Eicosatrienoic acid C20:3n3 63274 % Weight
Dihomo-Gamma-Linolenic acid 63275 % Weight
Arachidonic Acid (C20:4N6) 63276 % Weight
Eicosapentaenoic Acid C20:5n-3 63277 % Weight
Behenic acid C22:0 63278 % Weight
Docosadienoic acid C22:2n6 63279 % Weight
Adrenic acid C22:4n6 63280 % Weight
Docosapentaenoic Acid C22:5n-3 63281 % Weight
Docosapentaenoic acid n6 C22:6 63282 % Weight
Docasahexaenoic Acid C22:6n-3 63283 % Weight
Lignoceric acid C24:0 63284 % Weight
Nervonic acid C24:1 63285 % Weight
Total Omega-3 Fatty Acids 63286 % Weight
Total Omega-6 Fatty Acids 63287 % Weight
EPA + DHA (20:5n3+22:6n3) 63288 % Weight
OM3/OM6 Ratio 63289
OM6/OM3 Ratio 63290
AA/EPA Ratio 63291

Test Version

Last Updated

2023-04-20