Correct Answer: B

Rationale: The most important instruction for the nurse to provide to a client following a cystectomy and urinary diversion is to report any signs of cloudy urine output. Cloudy urine may indicate infection, which is a serious concern in clients with a urinary diversion. Instructing the client to report any signs of infection immediately is crucial to prevent complications. Avoiding heavy lifting is important for postoperative recovery but not as critical as identifying a potential infection. Drinking an adequate amount of water is generally beneficial for health but not the most crucial instruction in this scenario. While monitoring for signs of infection at the surgical site is essential, cloudy urine is a more specific and immediate indicator of a potential problem in clients with urinary diversions.

Correct Answer: B

Rationale: A decrease in white blood cell count indicates that the infection is responding to treatment and the client's condition is improving. Monitoring the white blood cell count is a more objective indicator of the body's response to the antibiotics. Choices A, C, and D may also be positive signs, but they are less specific and may vary among individuals. Respiratory rate alone may not be sufficient to indicate improvement, as other factors can influence it. Energy levels and cough characteristics are subjective and may not always correlate with the effectiveness of antibiotic treatment.

Correct Answer: B

Rationale: The most important instruction for the nurse to provide to a client following a cystectomy and urinary diversion is to report any signs of cloudy urine output. Cloudy urine may indicate infection, which is a serious concern in clients with a urinary diversion. Instructing the client to report any signs of infection immediately is crucial to prevent complications. Avoiding heavy lifting is important for postoperative recovery but not as critical as identifying a potential infection. Drinking an adequate amount of water is generally beneficial for health but not the most crucial instruction in this scenario. While monitoring for signs of infection at the surgical site is essential, cloudy urine is a more specific and immediate indicator of a potential problem in clients with urinary diversions.

Correct Answer: A

Rationale: The correct answer is to monitor potassium levels. Spironolactone is a potassium-sparing diuretic, which means it helps the body retain potassium and excrete sodium. Monitoring potassium levels closely is essential because spironolactone can cause hyperkalemia (high potassium levels). Sodium levels are not typically affected by spironolactone. Calcium and magnesium levels are also not directly impacted by spironolactone, making choices B, C, and D incorrect.

Correct Answer: A

Rationale: The correct answer is A: 'Limit the effects of tissue damage.' After a myocardial infarction, the primary goal of care is to limit the damage to the heart muscle. This includes interventions to improve blood flow, oxygenation, and prevent further complications. Choice B ('Relieve pain and anxiety') is important but secondary to addressing tissue damage. Choice C ('Prevent arrhythmias') is also crucial but falls under the broader goal of limiting tissue damage. Choice D ('Reduce anxiety') is essential for holistic care but is not the primary goal immediately after a myocardial infarction.