Hay fever, hygiene, and household size.

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 Phenytoin was subsequently withdrawn.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.