Table 4.

Primary and secondary endpoints

Primary Endpoints	Secondary Endpoints
▪ Change in serum potassium at 2 and 4 h ▪ Length of ER or hospital stay ▪ Admit to hospital (yes/no) for the subgroup of participants enrolled from the ER	▪ Dialysis yes/no within 8 h ▪ Change in Ca²⁺ and Mg²⁺ ▪ Tolerability (gastrointestinal side effects) ▪ New lower extremity edema ▪ Palatability (patient subjective rating) ▪ Next morning serum potassium

Primary Endpoints

Secondary Endpoints

▪ Change in serum potassium at 2 and 4 h

▪ Length of ER or hospital stay

▪ Admit to hospital (yes/no) for the subgroup of participants enrolled from the ER

▪ Dialysis yes/no within 8 h

▪ Change in Ca²⁺ and Mg²⁺

▪ Tolerability (gastrointestinal side effects)

▪ New lower extremity edema

▪ Palatability (patient subjective rating)

▪ Next morning serum potassium