“…5). Between February 1968 and June 1969 (15 months) we used a concentration of 1.5 mEq of potassium per litre of dialysate fluid (Papadimitriou et al, 1968) and had no deaths from hyperkalaemia in 296 patient-months. Hypokalaemia has never been a serious problem, and this is in agreement with Seedat (1969).…”