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Test Directory

Fatty Acid Panel, Essential (C12-C22), Serum

Test Summary

Essential Fatty Acids (C12-C22), to be used for basic nutritional assessment, identifying fatty acid deficiency, and monitoring patients with fatty acid deficiency who are being treated with a special diet and/or fatty acid supplements.

Aliases

  • N/A

Specimen Collection

Special Instructions

N/A

Preferred Specimen

1 mL serum collected in red-top tube (no gel)

Minimum Volume

0.2 mL

Instructions

Patient age and gender are required for reporting.

Patient Preparation

Fasting required (overnight fast). No alcohol consumption for 24 hours prior to draw.
For pediatric patients, fasting is not required, but sample collection should occur prior to the next meal or scheduled feeding.

Storage

N/A

Transport Temperature

Frozen

Specimen Stability

  • Room temperature: Unacceptable
  • Refrigerated: 7 days
  • Frozen: 28 days

Limitations

N/A

Other Acceptable Specimens

Plasma collected in: EDTA (lavender-top) tube

Unacceptable Specimens

Hemolysis • Lipemia • Non-fasting samples • Serum Separator Tube (SST®)

Order Code

FATTYA

EPIC (Premier) Code

LAB3141

Includes

Lauric, C12:0
Myristic, C14:0
Hexadecenoic, C16:1w9
Palmitoleic, C16:1w7
Palmitic, C16:0
g Linolenic, C18:3w6
a Linolenic, C18:3w3
Linoleic, C18:2w6
Oleic, C18:1w9
Vaccenic, C18:1w7
Stearic, C18:0
EPA, C20:5w3
Arachidonic, C20:4w6
Mead, C20:3w9
h g-Linolenic, C20:3w6
Arachidic, C20:0
DHA, C22:6w3
DPA, C22:5w6
DPA, C22:5w3
DTA, C22:4w6
Docosenoic, C22:1
Nervonic, C24:1w9
Triene Tetraene Ratio
Total Saturated
Total Monounsaturated
Total Polyunsaturated
Total w3
Total w6
Total Fatty Acids
Interpretation

CPT Code

  • 82725
  • 82542

Billing Code

  • 650018
  • 650017

CPT Statement

Methodology

Gas Chromatography/Tandem Mass Spectrometer

FDA Status

This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Physician Attestation of Informed Consent

N/A

Testing Laboratory

Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano CA, 92675

Department

Reference Testing

Reference Range

See Laboratory Report

Setup Schedule / Expected Turnaround Time

Tuesday, Thursday, Saturday morning; Report available: 6 days

Specimen Collection

Special Instructions

N/A

Preferred Specimen

1 mL serum collected in red-top tube (no gel)

Minimum Volume

0.2 mL

Instructions

Patient age and gender are required for reporting.

Patient Preparation

Fasting required (overnight fast). No alcohol consumption for 24 hours prior to draw.
For pediatric patients, fasting is not required, but sample collection should occur prior to the next meal or scheduled feeding.

Storage

N/A

Transport Temperature

Frozen

Specimen Stability

  • Room temperature: Unacceptable
  • Refrigerated: 7 days
  • Frozen: 28 days

Limitations

N/A

Other Acceptable Specimens

Plasma collected in: EDTA (lavender-top) tube

Unacceptable Specimens

Hemolysis • Lipemia • Non-fasting samples • Serum Separator Tube (SST®)

Billing

CPT Code

  • 82725
  • 82542

Billing Code

  • 650018
  • 650017

CPT Statement

Result Information

Methodology

Gas Chromatography/Tandem Mass Spectrometer

Testing Laboratory

N/A

Reference Range

See Laboratory Report

Setup Schedule / Expected Turnaround Time

Tuesday, Thursday, Saturday morning; Report available: 6 days