A 54-year-old man was referred from the urology department with erectile dysfunction.
On examination, he had normal secondary sexual characteristics. Testicular volume was estimated at 15 mL bilaterally.
Investigations:
random plasma glucose 8.0 mmol/L
serum testosterone 8.1 nmol/L (9.0–35.0)
plasma follicle-stimulating hormone 3.4 U/L (1.0–7.0)
plasma luteinising hormone 4.7 U/L (1.0–10.0)
serum prolactin 410 mU/L (<360)
What is the most appropriate next step in management?
Select an option, then click Submit answer.
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check for macroprolactinaemia
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fasting plasma glucose
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prescribe sildenafil
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prescribe testosterone replacement
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serum testosterone (09.00 h)