Correct Answer: C

Rationale: The correct answer is C: 'Wear compression stockings daily.' Wearing compression stockings is essential after knee surgery to prevent venous stasis and reduce the risk of blood clots.
Choice A is incorrect as crossing legs when sitting can increase the risk of blood clots.
Choice B is incorrect because performing range-of-motion exercises every 4 hours may not be suitable for all clients post total knee arthroplasty.
Choice D is incorrect as applying heat to the incision site can increase the risk of infection.

Correct Answer: A

Rationale: The most important nursing intervention for a patient with a suspected pulmonary embolism is to administer anticoagulants. Anticoagulants help prevent further clot formation in the patient's blood vessels, reducing the risk of complications such as worsening of the pulmonary embolism or development of new clots. Administering oxygen (
Choice
B) may be necessary to support the patient's oxygenation, but anticoagulants take precedence as they target the underlying cause of the pulmonary embolism. Repositioning the patient (
Choice
C) and monitoring oxygen saturation (
Choice
D) are important aspects of patient care but are not the primary intervention for a suspected pulmonary embolism.

Correct Answer: C

Rationale: The correct answer is C. A serum potassium level of 3.2 mEq/L indicates hypokalemia, a potential complication of furosemide therapy, and should be reported immediately. Hypokalemia can lead to serious cardiac dysrhythmias.

Choices A, B, and D are important assessments but are not as critical as managing serum potassium levels in a client receiving furosemide for heart failure.

Correct Answer: A

Rationale: The correct answer is A: Wear loose clothing over the radiation site. Clients receiving radiation therapy should wear loose clothing over the treatment area to prevent irritation and promote healing.
Choice B is incorrect as scented lotions can irritate the skin during radiation therapy.
Choice C is incorrect because ice packs should not be applied to the radiation site as they can exacerbate skin reactions.
Choice D is incorrect as exposing the radiation site to sunlight can increase skin damage and should be avoided.

Correct Answer: C

Rationale: The correct answer is C because bending at the hips can dislocate the hip joint in clients who have had a total hip arthroplasty. This movement should be avoided to prevent complications post-surgery.

Choices A, B, and D are all correct statements for a client who has had a total hip arthroplasty. Avoiding prolonged sitting, crossing legs, and using a raised toilet seat are all appropriate measures to ensure proper healing and prevent complications.