What is the main reason for checking the urea and electrolytes prior to commencing a patient on amiodarone.. detect hypokalaemia

What is the main reason for checking the urea and electrolytes prior to commencing a patient on amiodarone?
A.A To detect hyponatraemia
B.A To detect impaired renal function
C.A To detect a metabolic acidosis
D.A To detect hyperkalaemia
E.A To detect hypokalaemia***