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22619 Fatty Acid Profile, Essential (FAPEP)

Fatty Acid Profile, Essential (FAPEP)
Test Code: FAPESSO
Synonyms/Keywords
C12-C22, Fatty Acid Profile, Essential, Essential Fatty Acids, Long-Chain Fatty Acids (LCFA), Omega 3, Omega 6, Omega 7, Omega 9, Omega fatty acids, Soft-FAPEP, Polyunsaturated Fatty Acids​
Test Components
​Includes Lauric acid, Myristic acid, Hexadecenoic acid, Palmitoleic acid, Palmitic acid, gamma-Linolenic acid, alpha-Linolenic acid, Linoleic acid, Oleic acid, Vaccenic acid, Stearic acid, Eicosapentaenoic acid, Arachidic acid, Mead acid, Homo-gamma-Linolenic acid,Arachidic acid, 6-w-3 Docosahexaenoic acid, 5-w-6 Docosapentaenoic acid, 5-w-3 Docosapentaenoic acid, 4-w-6 Docosatetraenoic acid, Docosenoic acid, Nervonic acid, Triene/Tetraene ratio, Total Saturated acid, Total Monounsaturated acid, Total polyunsaturated acid, Total w3, Total w6, Total Fatty Acids.
Useful For
​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 who are receiving linoleic acid (C18:2w6) and alpha-linolenic acid (C18:3w3)
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
​Yes Serum​ Red Top Tube (RTT)​ Serum Separator Tube (SST)​ 0.5 mL​ 0.15 mL​ ​
Collection Processing Instructions
​1. Fasting-overnight (12-14 hours).
2. Patient must not consume any alcohol for 24 hours before the specimen is drawn.
3. Spin down within 45 minutes of draw.
4. Submit sample in a plastic vial.
Additional Information:
1. Patient's age is required.
2. Include information regarding treatment, family history, and tentative diagnosis.
Specimen Stability Information
Specimen Type Temperature Time
Serum​ Frozen (preferred)​ 90 days​
​ Refrigerated ​ 24 hours​
Rejection Criteria
Gross lipemia
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Mayo Medical Laboratories​
 Monday through Friday​
4 days (not reported Saturday or Sunday)​
Gas Chromatography-Mass Spectrometry (GC-MS) Stable Isotope Dilution Analysis​
Reference Lab
Mayo Clinic Laboratories
Reference Range Information
Interpretive report
Interpretation
​Concentrations below the stated reference ranges are consistent with fatty acid deficiencies.
 
An increased triene/tetraene ratio is consistent with essential fatty acid deficiency.
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
​82542 ​ ​ ​ ​
Synonyms/Keywords
C12-C22, Fatty Acid Profile, Essential, Essential Fatty Acids, Long-Chain Fatty Acids (LCFA), Omega 3, Omega 6, Omega 7, Omega 9, Omega fatty acids, Soft-FAPEP, Polyunsaturated Fatty Acids​
Test Components
​Includes Lauric acid, Myristic acid, Hexadecenoic acid, Palmitoleic acid, Palmitic acid, gamma-Linolenic acid, alpha-Linolenic acid, Linoleic acid, Oleic acid, Vaccenic acid, Stearic acid, Eicosapentaenoic acid, Arachidic acid, Mead acid, Homo-gamma-Linolenic acid,Arachidic acid, 6-w-3 Docosahexaenoic acid, 5-w-6 Docosapentaenoic acid, 5-w-3 Docosapentaenoic acid, 4-w-6 Docosatetraenoic acid, Docosenoic acid, Nervonic acid, Triene/Tetraene ratio, Total Saturated acid, Total Monounsaturated acid, Total polyunsaturated acid, Total w3, Total w6, Total Fatty Acids.
Ordering Applications
Ordering Application Description
​Centricity ​Fatty Acid, Essential (C12-C22) #82426
​Cerner ​Fatty Acid Profile, Essential (C12-C22) #82426
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
​Yes Serum​ Red Top Tube (RTT)​ Serum Separator Tube (SST)​ 0.5 mL​ 0.15 mL​ ​
Collection Processing
​1. Fasting-overnight (12-14 hours).
2. Patient must not consume any alcohol for 24 hours before the specimen is drawn.
3. Spin down within 45 minutes of draw.
4. Submit sample in a plastic vial.
Additional Information:
1. Patient's age is required.
2. Include information regarding treatment, family history, and tentative diagnosis.
Specimen Stability Information
Specimen Type Temperature Time
Serum​ Frozen (preferred)​ 90 days​
​ Refrigerated ​ 24 hours​
Rejection Criteria
Gross lipemia
Useful For
​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 who are receiving linoleic acid (C18:2w6) and alpha-linolenic acid (C18:3w3)
Test Components
​Includes Lauric acid, Myristic acid, Hexadecenoic acid, Palmitoleic acid, Palmitic acid, gamma-Linolenic acid, alpha-Linolenic acid, Linoleic acid, Oleic acid, Vaccenic acid, Stearic acid, Eicosapentaenoic acid, Arachidic acid, Mead acid, Homo-gamma-Linolenic acid,Arachidic acid, 6-w-3 Docosahexaenoic acid, 5-w-6 Docosapentaenoic acid, 5-w-3 Docosapentaenoic acid, 4-w-6 Docosatetraenoic acid, Docosenoic acid, Nervonic acid, Triene/Tetraene ratio, Total Saturated acid, Total Monounsaturated acid, Total polyunsaturated acid, Total w3, Total w6, Total Fatty Acids.
Reference Range Information
Interpretive report
Interpretation
​Concentrations below the stated reference ranges are consistent with fatty acid deficiencies.
 
An increased triene/tetraene ratio is consistent with essential fatty acid deficiency.
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Mayo Medical Laboratories​
 Monday through Friday​
4 days (not reported Saturday or Sunday)​
Gas Chromatography-Mass Spectrometry (GC-MS) Stable Isotope Dilution Analysis​
Reference Lab
Mayo Clinic Laboratories
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
​82542 ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.