Reviewed By: Dr. Kurt Kloss, MD
Last Reviewed Date: Oct 09, 2018
Last Modified Date: Oct 09, 2018
Published Date: Jul 31, 2017
The IGF-1 blood test measures the amount of insulin-like growth factor 1 (IGF-1) in your blood, which is highly correlated with the "average" circulating levels of growth hormone in your blood. Following is a sample of the results of the IGF-1 blood test. The reference interval indicates the normal ranges and the flag indicates a result outside of those ranges.