You are caring for the following patients with endocrine disorders. Which one must you assess first?
1) 21-year-old with diabetes insipidus whose urine output overnight was 2000 mL
2) 55-year-old with syndrome of inappropriate antidiuretic hormone secretion (SIADH) who is demanding that the UAP refill his water pitcher
3) 65-year-old with Addison disease whose morning potassium level is 6.2 mEq/L
4) 48-year-old with Cushing disease with a weight gain of 1.5 lb over the past 4 days