Fatty Acids, Free
0080120
Ordering Recommendation
Submit With Order
Mnemonic
FFA
Methodology
Quantitative Spectrophotometry
Performed
Mon, Wed, Fri
Reported
1-4 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Overnight fasting specimen is preferred.  
Collect
Serum separator tube. Collect on ice. Also acceptable: Plasma collected in EDTA, sodium fluoride/potassium oxalate, sodium citrate, or ammonium oxalate.  
Specimen Preparation
Allow serum specimen to clot completely on ice. Serum must be separated from cells and frozen immediately, otherwise lipase continues to break down triglycerides, giving rise to elevated levels of nonesterified (free) fatty acids. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.2 mL)  
Storage/Transport Temperature
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.  
Unacceptable Conditions
Heparinized or non-frozen specimens.  
Remarks
 
Stability
After separation from cells: Ambient: Unacceptable; Refrigerated: 4 hours; Frozen: 1 month  
Reference Interval
0-30 days: 0.43-1.37 mmol/L
1 month-9 years: 0.50-0.90 mmol/L
10 years and older: 0.10-0.60 mmol/L
Interpretive Data
Note
CPT Code(s)
82725
Components
Component Test Code*Component Chart Name
0080120Fatty Acids, Free
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Cross References
  • FFA
  • Free Fatty Acids
  • Free Fatty Acids, Serum
  • NEFA
  • Non Esterified Fatty Acids