A nurse cares for a client who has a heart rate averaging 56 beats/min with no adverse symptoms. Which activity modification should the nurse suggest to avoid further slowing of the heart rate? A. Make certain that your bath water is warm. B. Avoid straining while having a bowel movement. C. Limit your intake of caffeinated drinks to one a day. D. Avoid strenuous exercise such as running. {Ans: B. Avoid straining while having a bowel movement. Rationale: Bearing down strenuously during a bowel movement is one type of Valsalva maneuver, which stimulates the vagus nerve and results in slowing of the heart rate. Such a result is not desirable in a person who has bradycardia. The other instructions are not appropriate for this condition.}A nurse cares for a client with an intravenous temporary pacemaker for bradycardia. The nurse observes the presence of a pacing spike but no QRS complex on the client's ECG. Which action should the nurse take next? A. Administer intravenous diltiazem (Cardizem). B. Assess vital signs and LOC. C. Administer sublingual nitroglycerin D. Assess capillary refil and temperature {Ans: B. Assess vital signs and LOC. Rationale: In temporary pacing, the wires are threaded into