Free Fatty Acids
(a.k.a FFA, NEFA, non-esterified fatty acids)
minimum sample volume required ~ 2.5ml
Test Code: FFA
Special instructions
Send to laboratory immediately following collection.
A concurrent sample for laboratory glucose must also be sent.
Sent away
to Southmead Hospital
Reference range
0.10 - 0.90 mmol/L (fasting)
Units
mmol/L
Turnaround Time
10
days
Department: Biochemistry
Clinical Application
Free fatty acids (FFAs), which include beta-hydroxybutyrate (BHB), are produced when glucose cannot be used as a fuel source. FFAs can be measured in the investigation of hypoglycaemia, or in those with symptoms associated with ketoacidosis.
The ratio of FFA/BHB may be used to detect fatty acid oxidation defects, or hyperinsulinism.
Please note: This is not the same as very long chain fatty acids (VLCFA) or essential fatty acids.
Webpage updated: March 2024