Citations 0
Editor's Correspondence
April 23, 2001

Determining the Serum Concentration Alone Is Not Sufficient to Justify Potassium Administration

Author Affiliations

Copyright 2001 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.2001

Arch Intern Med. 2001;161(8):1117. doi:

In their article "New Guidelines for Potassium Replacement in Clinical Practice,"1 Jay N. Cohn et al state that "increasing potassium intake should be considered when serum potassium levels are between 3.5 and 4.0 mmol/L." Although they correctly state that a level lower than 3.6 mmol/L is not necessarily synonymous with whole-body potassium deficiency, no mention is made of the value of other findings that could lend credibility to a low value of serum potassium concentration. Such laboratory validation includes a low specific gravity of the urine, alkaline urine, metabolic alkalosis, and electrocardiographic findings of decreased T and prominent U waves.2

First Page Preview View Large
First page PDF preview
First page PDF preview