Thyrotoxic Periodic Paralysis: A Rare Cause of Quadriparesis in a Young and Seemingly Healthy Patient.

Hypokalemia is a common laboratory finding in hospitalized patients, typically resulting from insufficient potassium intake, renal or gastrointestinal losses, or intracellular shifts. While the underlying cause is often easily identifiable, certain cases present diagnostic challenges, and if left unrecognized, the consequences can be life-threatening. We report a rare and atypical case of severe symptomatic hypokalemia as the initial presentation of newly diagnosed Graves' disease.