Final answer:
The potential complication of the surgery that requires immediate follow-up is the sudden onset of severe pain at the surgical site.
Step-by-step explanation:
The potential complication of the surgery that requires immediate follow-up is the sudden onset of severe pain at the surgical site. Severe pain can be an indicator of various complications, such as infection, hematoma, or damage to surrounding structures. The nurse should assess the surgical site, check for signs of infection (such as redness, swelling, and warmth), and notify the healthcare provider for further evaluation and intervention.