Correct Answer: B

Rationale: The most appropriate instruction to prevent falls at home is to remove loose rugs and install grab bars in high-risk areas like the bathroom. This helps eliminate tripping hazards and provides stability for the patient. Keeping the living space well-lit (Choice A) is important but may not directly address fall prevention. Using furniture for support (Choice C) can lead to accidents if the furniture is not stable. Wearing socks without shoes (Choice D) increases the risk of slipping rather than preventing falls.

Correct Answer: B

Rationale: The correct answer is B: 'Explain that the DNR must be honored.' The nurse's responsibility is to follow the DNR order, as it is a legal and ethical obligation. Choice A is incorrect because following the family's wishes would go against the established DNR order. Choice C is incorrect as ignoring the DNR order is not appropriate. Choice D is also incorrect as performing CPR would be contrary to the client's expressed wishes in the DNR order.

Correct Answer: A

Rationale: The correct answer is to encourage early ambulation and leg exercises. By promoting early ambulation and leg exercises, blood flow is enhanced, reducing the risk of venous thromboembolism (VTE) in postoperative patients. Choice B, applying compression stockings, helps prevent VTE but is not as effective as early ambulation and exercises. Choice C, administering anticoagulants, is important in VTE prevention but does not directly address improving circulation through physical activity. Choice D, elevating the patient's legs, may be beneficial for circulation in specific cases but is not as effective in preventing VTE as early ambulation and leg exercises.

Correct Answer: A

Rationale: The correct answer is to check the patient's heart rate before administering digoxin. Digoxin is a medication that primarily affects cardiac function. Monitoring the heart rate is crucial because digoxin can cause arrhythmias or worsen existing heart rhythm abnormalities. Assessing blood pressure may also be important but is secondary to evaluating the heart rate when administering digoxin. Ensuring the patient has eaten before administration is not directly related to the safe administration of digoxin. Monitoring the patient's weight is not a priority action before administering digoxin.

Correct Answer: B

Rationale: The correct answer is B: "Ensure the chest tube is connected to a closed drainage system." This is a critical nursing action when managing a patient with a chest tube because it is essential for proper drainage and to prevent complications such as air leaks or infections. Option A is incorrect because keeping the chest tube clamped at all times would prevent proper drainage and could lead to complications. Option C is incorrect as emptying the chest tube drainage system should be done based on assessment findings rather than a fixed time interval. Option D is incorrect because disconnecting the chest tube when the patient is ambulating can lead to complications like a pneumothorax.