Test Catalog

Test ID: INSFT    
Insulin, Free and Total, Serum

Useful For Suggests clinical disorders or settings where the test may be helpful

Assessing free (bioactive) insulin concentrations in patients with known or suspected insulin antibodies


Patients treated with exogenous insulin preparations might develop autoantibodies against insulin.


If significant differences between the total and free insulin concentrations are detected, the presence of insulin antibodies is suspected.

Profile Information A profile is a group of laboratory tests that are ordered and performed together under a single Mayo Test ID. Profile information lists the test performed, inclusive of the test fee, when a profile is ordered and includes reporting names and individual availability.

Test IDReporting NameAvailable SeparatelyAlways Performed
INSFInsulin, Free, SNoYes
INSTOInsulin, Total, SYes, (Order as INS)Yes

Method Name A short description of the method used to perform the test

Electrochemiluminescence Immunoassay

NY State Available Indicates the status of NY State approval and if the test is orderable for NY State clients.


Reporting Name Lists a shorter or abbreviated version of the Published Name for a test

Insulin, Free and Total, S

Aliases Lists additional common names for a test, as an aid in searching

Free Insulin, Serum