A nurse is assisting in planning care for a client who has cystitis. Which of the following interventions should be included in the plan of care?

A. Direct the client to wash underclothing in bleach is incorrect because while proper hygiene is important, routine washing with regular detergent is sufficient. Bleach is not necessary and may cause skin irritation. This intervention does not directly treat or prevent cystitis. B. Encourage bubble baths because they are soothing to the bladder is incorrect because bubble baths can irritate the urethra and increase the risk of urinary tract infections. Clients with cystitis should avoid bubble baths and other potential irritants. C. Instruct the client to take antibiotics until dysuria is no longer present is incorrect because antibiotics must be taken for the full prescribed course, even if symptoms resolve. Stopping antibiotics early can lead to incomplete treatment and antibiotic resistance. D. Instruct the client to avoid drinking caffeinated beverages is correct because caffeine can irritate the bladder and worsen symptoms such as urgency, frequency, and dysuria. Avoiding bladder irritants is an important part of managing cystitis.