A nurse is caring for a client who has developed hives and urticaria following the administration of IV contrast dye after a cardiac catheterization. Which of the following medications should the nurse plan to administer?

Choice A reason: Decreased urinary output is not a direct indicator of morphine's effectiveness in acute heart failure. While morphine can lead to urinary retention, this is generally considered a side effect rather than an intended therapeutic outcome.

Choice B reason: Emesis, or vomiting, of 250 mL is not an indication of morphine's effectiveness. In fact, nausea and vomiting are common side effects of morphine and other opioids. If emesis occurs, it may necessitate further intervention.

Choice C reason: Decreased anxiety is a sign that the morphine is effective. Morphine has anxiolytic properties, meaning it can help alleviate anxiety, which is beneficial in acute heart failure where anxiety can exacerbate symptoms like shortness of breath.

Choice D reason: An increased respiratory rate to 26/min is not an indication of morphine's effectiveness and is a cause for concern. Morphine can depress the respiratory system, and an increased respiratory rate may indicate compensation for hypoxemia or the onset of adverse effects.

Choice A reason: Including more cantaloupe in the diet is a good practice for a client on furosemide therapy. Cantaloupe is high in potassium, and furosemide can cause hypokalemia (low potassium levels) as it is a potent diuretic that increases urine production and the excretion of various electrolytes, including potassium. Therefore, consuming foods rich in potassium can help counteract this potential adverse effect.

Choice B reason: Checking the pulse before taking the medication is a general safety measure but does not directly relate to a specific adverse effect of furosemide. While it's important to monitor heart rate, especially in clients with heart failure, this statement does not reflect an understanding of the adverse effects related to furosemide.

Choice C reason: Trying to limit foods that contain salt is an appropriate action for a client with heart failure but is not directly related to an adverse effect of furosemide. Reducing salt intake can help manage heart failure by preventing fluid retention; however, it does not address the specific adverse effects of furosemide therapy.

Choice D reason: Checking blood pressure to ensure it doesn't get too high is important for clients with heart failure but does not indicate an understanding of the adverse effects of furosemide. Furosemide is used to reduce excess fluid in the body, which can lower blood pressure, not increase it. This statement does not reflect an understanding of furosemide's potential to cause electrolyte imbalances.