A nurse is providing teaching to a client who is starting to take finasteride for the treatment of male pattern baldness. Which of the following statements by the client indicates an understanding of the teaching?

Choice A rationale Finasteride is a 5-alpha reductase inhibitor. It blocks the conversion of testosterone to dihydrotestosterone (DHT), the androgen responsible for prostate growth. By reducing DHT levels, finasteride actually causes the prostate gland to shrink, not increase in size. This mechanism is why the medication is also used to treat benign prostatic hyperplasia (BPH). Choice B rationale Finasteride's mechanism of reducing dihydrotestosterone (DHT) levels can lead to sexual dysfunction side effects. DHT is a potent androgen necessary for normal sexual function. Lowering its concentration can result in decreased libido, erectile dysfunction (impotence), and a reduction in the volume of ejaculate, which are all recognized adverse effects. Choice C rationale Finasteride inhibits the conversion of testosterone to DHT. Reduced DHT levels are associated with a decrease in the volume of ejaculate, a side effect that can occur in some individuals taking the medication. Therefore, a statement indicating an increase in ejaculate amount would demonstrate a misunderstanding of the drug's effects. Choice D rationale Finasteride acts by inhibiting the enzyme 5-alpha reductase to decrease DHT production. The process of hair follicle regeneration and growth is slow, and it typically takes several months of consistent use (often 3 to 6 months) before a client will begin to see a noticeable increase in hair growth. A client expecting results in 1 month shows a lack of understanding.