Test Overview
Enzymatic Colorimetric
Evaluation of metabolic status of persons with endocrinopathies. Detection of pheochromocytoma and of glucagon, thyrotropin-, and adrenocorticotropin-secreting tumors. Monitoring of control of diabetes mellitus.
< 0.73 mmol/L
Reference values have not been established for patients who are <18 years of age.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
2 - 4 days
- Fatty Acids, Nonesterified
- Nonesterified Fatty Acids (NEFA)
- Free Fatty Acids (FFA), Total
Specimen Requirements
Collect specimen in red top or SST tube from a fasting patient (12 - 14 hour fast). Centrifuge within 45 minutes of collection, aliquot serum into a plastic tube and freeze. Patient must not consume alcohol for 24 hours before collection of specimen.
Fasting specimen. Must arrive in lab or aliquot and freeze within 45 minutes.
1 mL serum
0.5 mL serum
Additional Information
Test sent to Mayo Medical Laboratories.