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HelpCatalog ID NEFA Free Fatty Acids, Total, Serum
Reporting Name
Free Fatty Acids, Total, SUseful For
Evaluation of metabolic status of patients with endocrinopathies
Monitoring of control of diabetes mellitus
Monitoring the effects of therapeutic diet/exercise lifestyle changes
Specimen Required
Patient Preparation:
1. Fasting-overnight (12-14 hours).
2. Patient must not consume any alcohol for 24 hours before the specimen is collected.
3. Patient should not be receiving therapeutic heparin.
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Centrifuge within 45 minutes of collection and aliquot 1 mL of serum into a plastic vial.
2. Immediately freeze specimen.
Collect 2.2 mL blood in Red top tube. Patient should fast for 12 hours prior to draw and not consume alcohol for at least 24 hours prior to draw.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Frozen | 7 days |
Reference Values
≥18 years: 0.00-0.72 mmol/L
Reference values have not been established for patients who are <18 years of age.
Specimen Type
SerumReject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Day(s) Performed
Monday through Friday
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82725
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| NEFA | Free Fatty Acids, Total, S | 15066-4 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| NEFA | Free Fatty Acids, Total, S | 15066-4 |
Method Name
Enzymatic Colorimetric
Forms
If not ordering electronically, complete, print, and send a Cardiovascular Test Request Form (T724) with the specimen.