Labels:text | screenshot | black and white | black | font | document | monochrome OCR: ssessed Prior to puberty, Leydig cell function is erone to measuring the response of plasma testo e to five f human gonadotrophin administration after thr days of treatment with 1,000-2,000iu/d bertal chorionic gonadotrophin (hCG); in pre e to some boys, plasma testosterone should incres 7nmol/l (200mg/dl). n of The response increases with the initiati rtain puberty and peaks in early puberty. In c I to GnRH circumstances, the response of plasma I nctional administration is utilised to assess the f eydig cell integrity of the hypothalamic-pituitary a single axis. In general, the peak LH that follow levels. A GnRH injection correlates with the base normality subnormal response indicates that an a exists, but does not identify the site.