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chemical findings stable.The packed cell volume was 0 27.With hypertonic peritoneal dialysis his weight decreased by 1 6 kg, but blood pressure remained raised at 230/130 mm Hg, and the next day he suffered two generalised seizures.Packed cell volume was 0-35.Phenytoin was started.He was discharged on 17 December, normotensive with no neurological sequelae, and taking no antihypertensive medication.Phenytoin was subsequently withdrawn.He had a cadaveric renal transplant in 1987 and remained well with a blood pressure of 130/80 mm Hg.