Cut-off limits of the GH response to GHRH plus arginine test and IGF-I levels for the diagnosis of GH deficiency in late adolescents and young adults

Abstract

In late adolescent and early adulthood patients, a GH cut-off limit using the GHRH+ARG test lower than 19.0 microg/l is able to discriminate patients with a suspicion of GHD and does not vary from infancy to early adulthood.