2 - 4 days
Fatty Acids, Nonesterified
Nonesterified Fatty Acids (NEFA)
Free Fatty Acids (FFA), Total
Free Fatty Acids, Total, S
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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.
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.