TESTOSTERONE STIMULATION BY HCG
Post stimulation, testosterone levels rise to twice that of basal levels. A normal response to HCG is seen in patients with unilateral or bilateral undescended testes, while lack of response is compatible with anorchia or Leydig cell agenesis.
Overnight fasting is mandatory. Both containers must be clearly marked with time and date drawn, and submitted with 1 test request form. Injection HCG is not provided by LPL