A nurse is caring for a client who has Alzheimer's disease.
Which of the following findings should the nurse expect?

Choice A rationale:

Taking antibiotics when having a virus is not a correct understanding of infection prevention. Antibiotics are ineffective against viruses and should only be used for bacterial infections under the guidance of a healthcare provider. This statement indicates a misunderstanding of infection prevention.

Choice B rationale:

Washing hands for at least 20 seconds with soap and water is the recommended practice for infection prevention. Washing hands for 10 seconds may not be sufficient to remove all germs effectively. This statement does not demonstrate a proper understanding of hand hygiene.

Choice C rationale:

Cleaning a cat's litter box during pregnancy is not recommended due to the risk of contracting toxoplasmosis, a parasitic infection that can harm the fetus. Pregnant individuals should avoid handling cat litter to prevent exposure to this infection. This statement indicates a lack of awareness regarding infection prevention during pregnancy.

Choice D rationale:

Waiting 5 days after the chickenpox sores have crusted before visiting a person with chickenpox demonstrates an understanding of infection prevention. Chickenpox is highly contagious, and individuals should avoid close contact until the sores have fully healed and crusted over. This statement reflects appropriate knowledge about preventing the spread of contagious diseases during pregnancy.

The correct answer is A. Uses a firm-bristled toothbrush increases the client's risk for injury because it can cause bleeding gums and oral mucosal damage in clients with pernicious anemia, who have reduced platelet count and impaired clotting. The other findings do not increase the risk for injury and may be beneficial for clients with pernicious anemia. Increased intake of green, leafy vegetables provides folic acid, which is essential for red blood cell production. Drinks 2,500 mL of fluid per day prevents dehydration and maintains blood volume. Wears a face mask around others reduces exposure to infections, which can be serious in clients with pernicious anemia, who have impaired immunity due to low white blood cell count.