**Note: All laboratory testing requires an authorizing physician. DHA Laboratory offers a patient direct program that partners you with an authorizing physician. If you have any additional questions regarding the availability of testing, please contact our laboratory by telephone or email.**
The insulin test is used to diagnose an insulin-producing tumor and verify that the removal of the tumor has been successful. It can also be used to diagnose hypoglycemia, insulin resistance, and can be paired with a C-peptides test to determine levels of insulin being produced in the body, and levels of insulin coming from an outside sources such as insulin injections.