A nurse is assisting in providing care for clients on a medical unit. Which of the following client assessment changes should the nurse prioritize collecting data on first?

A client who has Graves' disease has a heart rate of 100/min and reports tremors.

A client who has type 2 diabetes mellitus has a blood glucose level of 120 mg/dL (74 - 106 mg/dL)

A client who has diabetes insipidus has an intake of 1,500 mL and an output of 1,600 mL in 24 hr.

A client who has left-sided stroke reports severe headache and is manifesting confusion.