15th April 2024

A 35-year-old gentleman presents to your general practice complaining of erectile dysfunction, gynecomastia, reduced physical vigour and fatigue.

A 35-year-old gentleman presents to your general practice complaining of erectile dysfunction, gynecomastia, reduced physical vigour and fatigue. You do not detect any physical abnormalities on physical examination. You suspect that he has hypogonadism and decide to do further investigations, which show that he has a serum total testosterone of 6 nmol/L. Which test should be performed next?

Select the SINGLE most appropriate option from the list below. Select ONE option only.