Severe Electrolyte Abnormalities and Distal Renal Tubular Acidosis in the Setting of Apremilast Use for Psoriatic Arthritis: A Case Report.

Renal tubular acidosis (RTA) involves dysfunction of the renal tubular system, which leads to electrolyte abnormalities and acid-base dysregulation. The case we present here discusses a patient with a past medical history of psoriatic arthritis who presented to the emergency department with progressive generalized weakness and anorexia in the preceding four weeks. She was found to have profound hypokalemia (1.