Type of sample/quantity required: at least 0.6 ml of serum for both samples (pre and post stimulation with GnRH): to obtain good quality serum it is essential to use tubes with separator gel and activator granules (these can be obtained from the laboratory by ordering them directly from the dedicated section of the online shop), wait for a clot to form, then centrifuge the sample for 10′ at 3000 RPM. The serum must then be separated as quickly as possible;

Storage/shipping methods: serum must be stored and shipped at refrigeration temperature;

Reception days: every day from Monday to Saturday;
Examination/reporting days: Mondays;
Waiting times: reports are issued within 7 working days.

1) Perform an initial sampling to measure the baseline testosterone;
2) Inoculate 2 µg/kg body weight of GnRH by IM;
3) Perform a second sampling to measure the testosterone post-stimulation, 60’ after administering the drug.