Growth Factor (IGF-1) Test - Insulin-like Growth Factor 1 (IGF-1) Test

An immunoassay to measure the concentration of Insulin-like Growth Factor 1 (IGF-1) in blood serum. IGF-1 is produced primarily in the liver in response to growth hormone (GH) stimulation, and is considered the most reliable and stable indicator of the overall activity of growth hormone in the body, as its level does not fluctuate throughout the day like growth hormone.