REal World EVidence for TrEAtment of HyperkaLemia in Emergency Department: Multicenter, Prospective, Observational Study

This study evaluates the management of subjects with Standard of Care (SOC) when admitted to the Emergency Department (ED) with hyperkalemia (potassium value ≥ 5.5 mmol/L). Demographics and medical history data, including previous ED visits and/or hospital admissions for hyperkalemia and reason for current ED admission, will be recorded. Subjects who receive an intervention/treatment for hyperkalemia will have study-related potassium values determined at 30 minutes, 1, 2, and 4 hours after the start of treatment. Subjects who receive no intervention/treatment during the initial 4-hour period will have a study-related potassium value determined 4 hours after the baseline potassium measurement. Available data obtained as part of SOC management will include physical examinations, vital signs, fluid intake and urine output, ECGs, clinical laboratory data, and results of chest x-rays. Data regarding the subject's chief complaint upon admission to the ED, the possible cause of the subject's hyperkalemia, and admitting and discharge diagnosis will be recorded; the subject's overall discharge summary will also be collected.