Question

The patient is scheduled to have a permanent pacemaker implanted. The patient asks the nurse, "How long will the battery in this thing last?" The nurse should answer,

a. "Life expectancy is about 1 year. Then it will need to be replaced."
b. "Pacemaker batteries can last up to 25 years with constant use."
c. "Battery life varies depending on usage, but it can last up to 10 years."
d. "Pacemakers are used to treat temporary problems so the batteries don't last long."

Answer 1

Pacemaker batteries typically last up to 10 years before needing replacement, thanks to the efficient usage of lithium-iodine batteries and their redox reaction-based operation. While usage can vary, this is a general expectation for their lifespan.

thus the corret opction is:c

Step-by-step explanation:

The patient asking about the lifespan of a pacemaker battery should be informed that the battery life varies depending on usage, but on average, the batteries used in pacemakers can last up to 10 years. Cardiac pacemakers are powered by lithium-iodine batteries, which have a high internal resistance due to the solid electrolyte.

This means that they can only draw a low current, which contributes to their longevity.

These batteries are specifically designed for applications like pacemakers, where frequent replacement would be difficult or undesirable.

It's important to note that while pacemakers are designed to be long-lasting, they don't last indefinitely, and the entire pacemaker doesn't need to be replaced when the battery depletes; often, just the battery is replaced.

Pacemakers use redox reactions to provide the necessary electricity for their operation, ensuring a steady and reliable power source for this critical device.