PEDIATRICS Vol. 4 No. 3 September 1949, pp. 287-295
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BALANCE AND ELECTROCARDIOGRAPHIC STUDIES IN A CHILD WITH POTASSIUM DEFICIENCY

WILLIAM M. WALLACE M.D.1 and FREDERIC C. MOLL M.D.1

1 The Department of Pediatrics, Harvard Medical School, and The Children's Medical Center, Boston, Mass.

An instance of potassium deficiency is described which was caused by excessive gastrointestinal loss, the parenteral administration of excessive NaCl and glucose and by lack of potassium intake.

The changes produced in the ECG are described.

Treatment with parenterally administered K was effective. Although a rise in the level of serum K accompanied the improvement, it returned to normal more slowly than the electrocardiogram and the clinical state.

The balances of Na, K, Cl and N during the recovery period are presented and discussed.

Submitted on December 7, 1948