Final answer:
A nurse should palpate the lower groin area to verify the presence of an inguinal hernia in a male client.
Step-by-step explanation:
To verify the presence of an inguinal hernia in a male client, a nurse should palpate the lower groin area. This is because an inguinal hernia occurs when tissue, such as part of the intestine, protrudes through a weak spot in the abdominal muscles at the inguinal canal. The hernia is typically noticeable near the groin and can become more apparent when the patient is standing, coughing, or straining.