What is the priority nursing intervention for a client experiencing a dysrhythmia that continues to deteriorate and requires converting?

The nurse should reassure the patient will receive the best care in keeping with his written directives Cardiac dysrhythmias associated with altered myocardial automaticity, conductivity or contractility can effect cardiac output. Reduced cardiac output increases the risk of ineffective tissue perfusion. If the dysrhythmia is a life-threatening type, encourage the family unit to calmly formulate a plan of action.