Hypokalemic periodic paralysis in subclinical hyperthyroidism: A case report

Hypokalemia is a common electrolyte abnormality often encountered in daily practice. While mild hypokalemia asymptomatic, moderate-to-severe usually manifested as significant symptoms such muscle weakness. In this paper, we presented case of 23-years-old male coming to our emergency department because weakness all his four limbs when he woke up the morning. Physical examinations were within normal limit, except that strength decreased extremities. Laboratory measures showed severe (1.9 mmol/L), hence patient was treated with potassium infusions. During hospitalization, thyroid function tests revealed hyperthyroidism. Therefore, paralysis, which laboratory finding hypokalemia, hyperthyroidism should be considered one potential diagnosis especially younger patient, even without previous history Merely treating underlying could dangerous boomerang.