Hospitalisation for heart failure: potassium disturbances common

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Inpatient therapy for heart failure can lead to serum potassium disturbances, which appear not to be harmful — but related changes in medication might be, researchers say.

Hospital patient holding pills

Dutch-led researchers studied data on close to 1600 hospitalised heart-failure patients taking part in a clinical trial. Daily measurements of serum potassium were made from baseline until discharge or day 7 of hospitalisation.

Overall serum potassium concentrations increased significantly, from 4.3mmol/L at baseline to 4.5mmol/L at