A client with psychosis who is receiving an antipsychotic medication is continually rubbing the back of the neck. Which nursing intervention is best for the nurse to implement?

Choice A reason: This is not the laboratory finding that indicates that the medication has been effective. Serum ammonia level of 30 Mcg/dL (17.62 mmol/L) is within the normal range for adults, and it does not reflect the effect of sodium polystyrene sulfonate. Sodium polystyrene sulfonate is a cation-exchange resin that binds to potassium in the intestine and removes it from the body through the stool. It does not affect the ammonia levels in the blood, which are influenced by the liver function and the urea cycle. The nurse should monitor the ammonia levels for any changes, but it is not the goal of the medication.

Choice B reason: This is not the laboratory finding that indicates that the medication has been effective. Hemoglobin level of 13.5 g/dL (135 g/L) is within the normal range for females, and it does not reflect the effect of sodium polystyrene sulfonate. Sodium polystyrene sulfonate does not affect the hemoglobin levels in the blood, which are determined by the number and size of red blood cells and the oxygen-carrying capacity of the blood. The nurse should monitor the hemoglobin levels for any changes, but it is not the goal of the medication.

Choice C reason: This is the laboratory finding that indicates that the medication has been effective. Serum potassium level of 3.8 mEq/L (3.8 mmol/L) is within the normal range for adults, and it indicates that the medication has lowered the potassium levels in the blood. Sodium polystyrene sulfonate is used to treat hyperkalemia, or high potassium levels, which can occur in AKI due to the impaired renal excretion of potassium. Hyperkalemia can cause cardiac arrhythmias, muscle weakness, and paralysis. The nurse should administer sodium polystyrene sulfonate as prescribed and check the serum potassium levels regularly to ensure that they are within the normal range.

Choice D reason: This is not the laboratory finding that indicates that the medication has been effective. Serum glucose level of 120 mg/dL (6.7 mmol/L) is slightly above the normal range for adults, and it does not reflect the effect of sodium polystyrene sulfonate. Sodium polystyrene sulfonate does not affect the glucose levels in the blood, which are influenced by the carbohydrate metabolism and the insulin secretion and action. The nurse should monitor the glucose levels for any changes, but it is not the goal of the medication.

Choice A reason: This is not an appropriate instruction for the nurse to include in the client's plan of care. Replacing salt with a salt substitute is not recommended for clients taking spironolactone, as most salt substitutes contain potassium. Spironolactone is a potassium-sparing diuretic that can cause hyperkalemia, or high levels of potassium in the blood. The client should avoid salt substitutes and other sources of potassium.

Choice B reason: This is not an appropriate instruction for the nurse to include in the client's plan of care. Monitoring skin for excessive bruising is not related to the use of spironolactone, as it does not affect the blood clotting process. The client should monitor for signs of bleeding, such as nosebleeds, gum bleeding, or blood in the urine or stool, if he or she is taking other medications that can interfere with clotting, such as aspirin or warfarin.

Choice C reason: This is not an appropriate instruction for the nurse to include in the client's plan of care. Covering the skin before going outside is not necessary for clients taking spironolactone, as it does not cause photosensitivity or increased risk of sunburn. The client should protect the skin from sun exposure as part of general health promotion, but it is not specific to spironolactone therapy.

Choice D reason: This is the appropriate instruction for the nurse to include in the client's plan of care. Limiting intake of high-potassium foods is important for clients taking spironolactone, as it can prevent hyperkalemia and its complications, such as cardiac arrhythmias, muscle weakness, or paralysis. The client should avoid foods that are rich in potassium, such as bananas, oranges, tomatoes, potatoes, spinach, and dairy products. The client should also have regular blood tests to monitor the potassium levels.