Which instruction would best reduce the symptoms of a client with heart failure and assure more comfort at home?

Choice A reason: An increase in serum hematocrit indicates that epoetin has been effective. Epoetin, also known as erythropoietin, is a medication used to stimulate the production of red blood cells. In patients with chronic kidney disease, the kidneys may not produce enough natural erythropoietin, leading to anemia. By administering epoetin, the goal is to increase red blood cell production, which is reflected in higher hematocrit levels (the proportion of red blood cells in the blood).

Choice B reason: An increase in serum calcium is not related to the effectiveness of epoetin. Serum calcium levels are regulated by different mechanisms, including parathyroid hormone and vitamin D, and are not directly influenced by epoetin administration.

Choice C reason: A decrease in serum creatinine levels would indicate improved kidney function, but this is not the expected outcome of epoetin therapy. Epoetin specifically targets red blood cell production and does not have a direct impact on kidney function or creatinine levels.

Choice D reason: A decrease in blood pressure is also not an expected indicator of epoetin effectiveness. While managing blood pressure is important in chronic kidney disease, epoetin's primary role is to address anemia by stimulating red blood cell production. Blood pressure regulation involves other medications and interventions.

Choice A reason: Placing the patient on a cardiac monitor immediately is crucial due to the elevated potassium level (6.9), which can cause life-threatening cardiac arrhythmias. Continuous cardiac monitoring allows for the early detection and prompt management of any arrhythmias that may occur.

Choice B reason: Weighing the patient immediately is important for assessing fluid status and for calculating appropriate medication dosages. In patients with acute kidney injury, monitoring fluid balance is critical to prevent fluid overload and ensure accurate treatment.

Choice C reason: Anticipating a fluid bolus is not appropriate for this patient. Fluid overload can exacerbate kidney injury and worsen the patient's condition. Fluid management should be carefully tailored based on the patient's overall clinical status and needs.

Choice D reason: Asking to have the laboratory redraw the blood specimen is unnecessary if the initial results are accurate and timely. The focus should be on addressing the critical findings, such as hyperkalemia, rather than retesting.

Choice E reason: Anticipating an order for a diuretic might be considered, but it is not the immediate priority. Diuretics may be useful in managing fluid overload but do not directly address the immediate life-threatening hyperkalemia.

Choice F reason: Preparing to administer IV insulin and dextrose as ordered is essential for treating hyperkalemia. Insulin helps to shift potassium into cells, thereby lowering the serum potassium level. Dextrose is given concurrently to prevent hypoglycemia caused by insulin administration.

Choice G reason: Administering Kayexalate (sodium polystyrene) as ordered is important for removing excess potassium from the body. Kayexalate works by exchanging sodium for potassium in the intestines, promoting the excretion of potassium in the stool.