Correct Answer: D

Rationale: The correct answer is D: 'Avoid taking aspirin while using this medication.' Enoxaparin is an anticoagulant medication, and taking aspirin concurrently can increase the risk of bleeding. Choices A, B, and C are incorrect. A nurse should not instruct the client to rub the injection site after administration as it may cause irritation. Pinching the skin while administering the injection is not recommended for enoxaparin injections. Aspirating before administering the medication is also unnecessary as enoxaparin is administered subcutaneously, not intramuscularly.

Correct Answer: D

Rationale: The correct instruction the nurse should include for a client prescribed digoxin is to notify the provider if they experience nausea or visual changes, as these symptoms can indicate digoxin toxicity. Option A is incorrect because digoxin should be taken on an empty stomach for better absorption. Option B is incorrect as antacids can interfere with the absorption of digoxin. Option C is incorrect as taking digoxin based on heart rate alone is not appropriate.

Correct Answer: D

Rationale: Ambulating the client on the first postoperative day is crucial to prevent complications like deep vein thrombosis and aid in the recovery process. Elevating the legs while in bed can help with circulation but is not as effective in preventing complications related to immobility post-surgery. Repositioning every 2 hours is important for preventing pressure ulcers but does not directly address postoperative care. Maintaining bed rest for the first 24 hours postoperatively can increase the risk of complications associated with immobility, making early ambulation a more appropriate intervention.

Correct Answer: A

Rationale: The correct answer is A: Hypokalemia. Patients on diuretics are at risk of developing hypokalemia due to increased potassium excretion by the kidneys. Hypokalemia can lead to serious consequences such as cardiac arrhythmias. Hyponatremia (choice B) is an imbalance of sodium levels and is not typically associated with diuretic use. Hyperkalemia (choice C) is the opposite condition where potassium levels are elevated and is less common in patients on diuretics. Hypercalcemia (choice D) is an excess of calcium in the blood and is not directly related to diuretic use. Therefore, monitoring for hypokalemia is crucial in patients taking diuretics.

Correct Answer: A

Rationale: Spinach is the correct answer because it is a good source of calcium. Since the client has eliminated dairy products due to lactose intolerance, which are a common source of calcium, increasing spinach consumption can help compensate for the lost calcium. Peanut butter, ground beef, and carrots are not significant sources of calcium and therefore not the best choice for this client.