Final answer:
The nurse should assess the older adult patient who is reported to have increasing lethargy and confusion first.
Step-by-step explanation:
In this scenario, the nurse should assess the older adult patient who is reported to have increasing lethargy and confusion first.
This patient's symptoms could indicate a potentially serious condition, such as infection or neurological changes, that require immediate attention.
Assessing and addressing this patient's condition promptly is essential to mitigate any potential harm or deterioration.