Final answer:
The most appropriate initial step in the management of this patient would be reassurance. The patient's symptoms are suggestive of erectile dysfunction (ED), which can be caused by a variety of factors including diabetes and coronary artery disease.
Step-by-step explanation:
The most appropriate initial step in the management of this patient would be Reassurance. The patient's symptoms are suggestive of erectile dysfunction (ED), which can be caused by a variety of factors including diabetes and coronary artery disease. Given his medical history and current medications, it's likely that these conditions are contributing to his ED. Initially, providing reassurance and addressing any concerns or stress related to his condition can be helpful.