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Test Code NEFA Free Fatty Acids, Total, Serum

Important Note

Sample only has 7 days stability to reach Mayo Laboratories – referring hospital laboratory should contact NUH Laboratory for feasibility.
Do not collect specimen on Fridays through Sundays, eve of public holidays and public holidays.

Additional Codes

Epic Ordering Code LAB3041489
NBS code LBC11754
Service code 36868

Reporting Name

Free Fatty Acids, Total, S

Specimen Type

Serum


Specimen Required


Patient Preparation:

1. Fasting: 12 hours, required

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. Within 45 minutes of collection, centrifuge and aliquot 1 mL of serum into a plastic vial.

2. Immediately freeze specimen.


Forms

If not ordering electronically, complete, print, and send a Cardiovascular Test Request Form (T724) with the specimen.

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Frozen 7 days

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject

Method Name

Enzymatic Colorimetric

Day(s) Performed

Monday through Friday

Report Available

1 to 3 days
National University Hospital-Singapore Note:

Please note that this is a referral test requiring transport to the external testing facility and an additional 3-5 days is required.

Reference Values

≥18 years: 0.00-0.72 mmol/L

Reference values have not been established for patients who are <18 years of age.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

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

CPT Code Information

82725

LOINC Code Information

Test ID Test Order Name Order LOINC Value
NEFA Free Fatty Acids, Total, S 15066-4

 

Result ID Test Result Name Result LOINC Value
NEFA Free Fatty Acids, Total, S 15066-4

Secondary ID

606892

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.
National University Hospital-Singapore Additional Information:

Last updated on 14/07/2026