Correct Answer: C

Rationale: Enalapril, an ACE inhibitor, is commonly prescribed to manage hypertension and heart failure. It helps reduce the workload on the heart and prevent fluid retention. Options A, B, and D are incorrect. Option A focuses on a respiratory rate, which is not specific to heart failure management. Option B suggests administering a large IV bolus of fluid, which can worsen heart failure by increasing fluid volume. Option D addresses the pulse rate, which is not a typical parameter to monitor for heart failure specifically.

Correct Answer: B

Rationale: Monitoring oxygen saturation levels is the most important intervention in this scenario. It ensures that the client is receiving adequate oxygenation, which is crucial for a client with pneumonia. By monitoring saturation levels, the nurse can promptly identify any oxygenation issues and adjust the oxygen delivery if necessary. Encouraging fluid intake, changing oxygen tubing daily, and assisting with frequent position changes are also important aspects of care for a client with pneumonia, but they are not as critical as monitoring oxygen saturation levels in ensuring immediate respiratory support.

Correct Answer: B

Rationale: The correct answer is to inject enoxaparin in the lateral abdominal wall. This site is typically recommended for subcutaneous injections of this medication. Expelling air bubbles from prefilled syringes is not necessary and may result in medication loss. Massaging the injection site is contraindicated as it can cause bruising or hematoma formation. Administering NSAIDs for injection site discomfort is unnecessary and not a standard practice.

Correct Answer: B

Rationale: The correct answer is B: Cut toenails straight across. This instruction is vital for clients with diabetes as it helps prevent ingrown toenails and infections, reducing the risk of foot ulcers. Applying lotion between the toes (choice A) should be avoided as it can create a moist environment prone to fungal infections. Using a heating pad (choice C) can lead to burns or injuries due to reduced sensation common in diabetes. Soaking feet in warm water daily (choice D) can also increase the risk of skin breakdown and should be avoided.

Correct Answer: D

Rationale: The correct answer is to elevate the affected leg while in bed. Elevating the leg helps reduce swelling and promotes venous return, aiding in the management of DVT. Positioning the affected leg below the heart can worsen the condition by increasing the risk of clot dislodgment. Massaging the affected extremity can also dislodge the clot and should be avoided. Cold compresses are not recommended as they can cause vasoconstriction, potentially worsening the condition.