Acquired Bartter-Like Phenotype.

We present a case of middle-aged man who presented with sudden onset of weakness of both upper and lower limbs with hypotension and polyuria without any antecedent illness. Investigations showed severe hypokalemia, hypocalcemia, hyponatremia, mild hypomagnesemia, hypercalciuria, metabolic alkalosis and increased renin and aldosterone levels in the blood suggesting Bartter syndrome. Thus a diagnosis of acquired Bartter-like phenotype was made. © Journal of the Association of Physicians of India 2011.