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A 55-year-old woman with renal tubular acidosis and urinary potassium wasting became comatose and subsequently fitted when her plasma potassium level fell to 0.9 mmol/l. Her neurological state resolved with potassium therapy. She had no other recognised cause for her coma. It appears that coma represents the extreme of the spectrum of neurological change that may occur in association with hypokalaemia.
A 55-year-old woman with renal tubular acidosis and urinary potassium wasting became comatose and subsequently fitted when her plasma potassium level fell to 0.9 mmol/l. Her neurological state resolved with potassium therapy. She had no other recognised cause for her coma. It appears that coma represents the extreme of the spectrum of neurological change that may occur in association with hypokalaemia.