“…A marked rise in potassium excretion in urine was noticed before the period of low serum potassium. The initial raised serum potassium agrees with the findings reported by some workers (Jungner, 1958;Chudnoff, 1954;Bower et al, 1952). However, the absence of extremely low levels found by others (Astrup et al, 1954;Jungner, 1958;Chudnoff, 1954;Bower et al, 1952;Gemzell, 1956;Earle, 1950), may be ascribed to the adequate care offered to those cases and the maintenance of a good fluid supply, mainly fruit juices rich in potassium.…”