Final answer:
The nurse's best response is Tell the patient that this change is expected in aging adults. The correct answer is options C.
Step-by-step explanation:
When a male older adult patient expresses concern about decreased penile firmness during erection, the best response from a nurse would be option C: Tell the patient that this change is expected in aging adults. It is important to address his concern with both facts and sensitivity. Erectile dysfunction (ED) is a common issue in the male reproductive system and it affects up to 70 percent of men by the age of 70.
Treatment for ED may involve lifestyle modifications, medication such as Viagra or Cialis, or in some cases more invasive treatments like vacuum pumps and penile implants. Informing the patient about these options can provide reassurance that there are ways to manage this change in sexual function.