Correct Answer: A

Rationale: The correct answer is to instruct the client to avoid sitting in a chair for prolonged periods. This is important to prevent contractures from developing in the residual limb. Sleeping with a pillow under the residual limb can contribute to contracture formation rather than prevent it. While elevation of the limb is important for reducing swelling and promoting circulation, continuous elevation for 48 hours is not necessary and may not be practical. Applying lotion to the residual limb daily is generally not recommended immediately post-amputation as the wound site needs to heal without interference from lotions or creams.

Correct Answer: B

Rationale: The correct instruction is to hold your breath for 10 seconds after inhaling the medication. This allows the medication to settle in the lungs and maximize its effectiveness. Choice A is incorrect as inhaling quickly may lead to improper medication delivery. Choice C is wrong because taking a second puff immediately after the first without waiting for the prescribed interval may cause an overdose. Choice D is also incorrect as exhaling fully after using the inhaler may result in the medication being exhaled rather than absorbed by the lungs.

Correct Answer: C

Rationale: Offering to go for a walk with the client helps redirect their energy in a non-confrontational way, avoiding escalation of aggressive behavior while promoting de-escalation.

Correct Answer: A

Rationale: Administering oxygen is the priority intervention for a client with a pulmonary embolism. Pulmonary embolism can lead to impaired gas exchange, causing hypoxemia. Administering oxygen helps to maintain adequate oxygenation levels. Thoracentesis is not indicated for a pulmonary embolism, as it is a procedure to remove fluid or air from the pleural space, not a treatment for embolism. Elevating the client's lower extremities is not a priority in the management of a pulmonary embolism. Administering anticoagulant therapy is important in the treatment of pulmonary embolism to prevent further clot formation, but it is not the first intervention. Oxygen administration takes precedence to address the immediate oxygenation needs of the client.

Correct Answer: D

Rationale: The correct answer is D. Swelling in the feet can indicate worsening heart failure due to fluid retention, and clients should report this to their healthcare provider immediately. Choices A, B, and C are incorrect because weighing once a week may not provide timely information on fluid retention, timing of diuretic medication is usually advised in the morning to prevent nocturia, and limiting fluid intake to 3 liters per day may not be appropriate for all clients with heart failure.