Transient hyperkalemic distal renal tubular acidosis with bicarbonate wasting in a young child.

Distal renal tubular acidosis is a clinical syndrome characterized by inability to acidify urine in the presence of metabolic acidosis. Classic dRTA patients exhibit failure to thrive, polyuria, metabolic acidosis and hypokalemia. Hyperkalemic dRTA without underlying disease is very rare. Transient bicarbonate wasting accompanied with hypokalemic dRTA was reported in infants. Herein, a transient hyperkalemic dRTA with bicarbonate wasting was reported in a young child.