The Client Is Experiencing Potassium Excess and Is Being Treated

The client is experiencing potassium excess and is being treated with 10% calcium gluconate. The client has been diagnosed with cardiac disease. The highest priority action on the part of the nurse is to check the client's:

A) medications since this drug can lead to digitalis toxicity.
B) pulse frequently since bradycardia is likely to result.
C) pedal pulses frequently and lower extremities for swelling.
D) mental status since alteration in consciousness may occur.