Final answer:
The assessment finding that requires immediate intervention by the nurse is absence of lungs sounds on the operative side, which could indicate a potential complication such as pneumothorax.
Step-by-step explanation:
The assessment finding that requires immediate intervention by the nurse is b. Absence of lungs sounds on the operative side. This finding could indicate a potential complication such as pneumothorax, where air enters the pleural space and causes the lung to collapse. The nurse should assess the client's vital signs, respiratory distress, and notify the surgeon immediately for further investigation and intervention.