The IGF-BP3 (Insulin-Like Growth Factor Binding Protein 3) test measures the level of IGFBP-3, the primary binding protein that regulates the availability and activity of IGF-1 in the bloodstream. IGFBP-3 works closely with IGF-1 and growth hormone to support normal growth and metabolic function.
This test is commonly used alongside IGF-1 to evaluate growth hormone activity and pituitary function. Because IGFBP-3 levels are more stable throughout the day than growth hormone, the test can provide helpful additional insight in the assessment of growth hormone deficiency or excess.
IGF-BP3
The IGF-BP3 (Insulin-Like Growth Factor Binding Protein 3) test measures the level of IGFBP-3, the primary binding protein that regulates the availability and activity of IGF-1 in the bloodstream. IGFBP-3 works closely with IGF-1 and growth hormone to support normal growth and metabolic function.
This test is commonly used alongside IGF-1 to evaluate growth hormone activity and pituitary function. Because IGFBP-3 levels are more stable throughout the day than growth hormone, the test can provide helpful additional insight in the assessment of growth hormone deficiency or excess.
