GH1 and acromegaly: In the first oral glucose tolerance test (OGTT) (Table 2), our patient had impaired glucose tolerance (101 mg/dL glucose at 0 minutes, and 186 mg/dL at 2 hours), with GH at 0 minutes of 1.5 ng/mL and 0.92 ng/mL nadir (as we used an ultrasensitive assay – IMMULITE 2000 hGH – we could use a cut-off of a nadir serum < 0.3 ng/mL to exclude acromegaly [16]).