**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.**
IGF stands for Insulin-like Growth Factor. This test can be used as a follow-up to other hormone tests. It is important that this test be used along with other clinical and laboratory data to help the practitioner in the assessment of growth disorders.