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IGF-1 Testing

Meaning

IGF-1 Testing is a standard diagnostic procedure in endocrinology involving the quantitative measurement of Insulin-like Growth Factor 1 levels in a patient’s serum. This test is crucial because IGF-1 serves as a stable, integrated biomarker reflecting the overall secretory status and biological action of Growth Hormone (GH) over the preceding 24 hours. Clinicians use the result to evaluate the function of the somatotropic axis and to diagnose conditions of GH excess or deficiency.