A 21-year-old white man comes to the emergency department because of muscular weakness. He has had episodes of weakness for the past year. After coming home from the gym, he feels the inability to reach the cabinets in the kitchen. Sometimes he is unable to rise from a seated position. The attacks occur approximately 3 times per week, last 3 hours, and subside spontaneously. The attacks also occur after heavy meals. On physical examination, you note 2/5 motor strength in the bicep muscles bilaterally, with 3/5 strength of the handgrip, and 2/5 motor strength of the quadriceps bilaterally, with 4/5 strength on dorsiflexion of the feet. He has no prior medical history. Laboratory studies reveal:
but the ans is Potasium chloride IV, not acetazolamide