A nurse is reinforcing teaching with a client who has a permanent pacemaker in place. Which of the following statements by the client indicates an understanding of the teaching?

A. "I should have my doctor replace the battery in the pacemaker in a year.": Pacemaker batteries are designed to last several years, typically 5 to 15 years depending on device type and usage. Routine replacement within a year is unnecessary, and frequent interventions would increase procedural risks. Battery status is monitored during scheduled device interrogations. B. "I need to record my pulse rate daily.": Regular monitoring of pulse rate helps the client detect irregularities or device malfunction. Recording daily heart rate allows for early identification of bradycardia, tachycardia, or missed pacing events, which can be reported promptly to the healthcare provider. This practice promotes ongoing self-management and safety. C. "I should avoid taking tub baths.": Clients with pacemakers can safely bathe or shower once the insertion site has healed, as the device is completely implanted. There is no need to avoid tub baths indefinitely unless specifically instructed due to wound healing concerns. General restriction is not necessary for daily hygiene. D. "I will remove my microwave oven from my home.": Modern pacemakers are shielded against interference from common household appliances, including microwave ovens. It is unnecessary to remove microwaves, as these devices do not pose a risk of pacemaker malfunction when used appropriately.