An Insulin-like Growth Factor Test, or IGF-1 Blood Test, is ordered to help diagnose the cause of growth abnormalities and to assess pituitary function. This test is a convenient, low-cost alternative to a traditional doctor's office visit.
An IGF-1 Blood Test is commonly ordered for patients who have symptoms that indicate insufficient or excess production of human growth hormone (HGH) and IGF-1. Such symptoms include gigantism or slow or delayed growth and development in children, and acromegaly or decreased bone density and muscle strength in adults. The test is also used if an underactive pituitary gland is suspected or to monitor patients on HGH therapy.