A 74-year-old woman is brought to emergency after being found beside the staircase in her home by her husband unconscious. Vitals are stable. Examination shows diffuse movement to painful stimuli. She has a history of essential hypertension managed with hydrochlorothiazide. She does not drink or smoke. Laboratory studies show:
Serum K+ 5.5 mEq/L
Blood urea nitrogen 30 mg/dL
Creatinine 2.2 mg/dL
Urine blood 3+
Urine RBC 3-4/hpf
Which of the following is most likely to be seen in this patient?
