To the Editor:
—Other aspects of the investigation of Kunin and associates and the editorial comments upon the subject are equally pertinent. Serum potassium concentration may fall even if potassium is administered with saline solution. Also, potassium therapy after the patient has received digitalis in toxic amounts (rather than therapeutic) would be more likely to precipitate hyperpotassemic, not hypopotassemic, ventricular arrhythmias. It would be quite immodest for me to agree with Dr. Trimble that the editorial in The Journal (180:775 [June 2] 1962) presents "an excellent commentary" on this subject. I wrote that editorial.