Explaination: As previously stated, digoxin toxicity itself results in hyperkalemia, however hypokalemia significantly increases the risk for serious arrhythmias in the digoxin toxic patient.

In combination, these findings aroused the suspicion of hyperkalemia. Furthermore, the ECG software double-counted the QRS complexes, as it misleadingly counted T waves too (151 bpm; red box/arrow).

Digoxin toxicity is worsened in states of hypokalemia (low potassium ... The treatment for hyperkalemia causing ECG changes is usually intravenous calcium administration, however this can be ...

Use of finerenone for heart failure with preserved ejection fraction carries a hyperkalemia risk, especially in patients with kidney disease.

Among all patients, experiencing either hyperkalemia or hypokalemia was significantly associated with 1.6- and 2.5-fold increased risks of worsening heart failure events or cardiovascular death ...