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HelpTest Code NEFA Free Fatty Acids, Total, Serum
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.
CMH COLLECTION: 2 mL in red vacutainer
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Frozen | 7 days |
Useful For
Evaluation of metabolic status of patients with endocrinopathies
Monitoring of control of diabetes mellitus
Monitoring the effects of therapeutic diet/exercise lifestyle changes
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Day(s) Performed
Monday through Friday
Report Available
1 to 3 daysReporting Name
Free Fatty Acids, Total, SReference Values
≥18 years: 0.00-0.72 mmol/L
Reference values have not been established for patients who are <18 years of age.
Method Name
Enzymatic Colorimetric
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82725