Dr Zatuchni's letter raises legitimate concerns about the inappropriate use of potassium supplementation. Indeed, our recommendation was that treatment
"should be considered" in such situations, thus presuming that careful consideration would be given to laboratory validity and ancillary findings. Nonetheless, waiting for other laboratory and electrocardiographic confirmation may leave many patients unprotected from the risks of modest hypokalemia.
Cohn JN. Determining the Serum Concentration Alone Is Not Sufficient to Justify Potassium Administration—Reply. Arch Intern Med. 2001;161(8):1117. doi:
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