Correct Answer: D

Rationale: The correct answer is D: Strengthens heart contraction. Digoxin is an inotropic agent that works by increasing the force of the heart's contractions. This leads to improved cardiac output and helps manage conditions like heart failure. Choices A, B, and C are incorrect because digoxin does not decrease heart rate, increase conduction time, or increase heart rate. It specifically targets the strength of the heart's contractions, making option D the most appropriate choice. This action of digoxin is crucial in improving the efficiency of the heart's pumping function.

Correct Answer: C

Rationale: The correct answer is C: Turn frequently every 2 hours. This is because changing positions regularly helps to relieve pressure on specific areas, reducing the risk of developing decubitus ulcers. Turning every 2 hours helps to maintain blood flow and prevent tissue damage. A: Massaging reddened areas with lotion or oils can actually cause further damage by increasing friction and pressure on the skin. B: While using a special water mattress can help distribute pressure more evenly, it is not as effective as regular turning to prevent decubitus ulcers. D: Keeping the skin clean and dry is important for overall skin health but alone is not sufficient to prevent decubitus ulcers. Regular repositioning is crucial in reducing pressure and avoiding tissue breakdown.

Correct Answer: B

Rationale: The correct answer is B: Offering emotional support. In the preoperative phase, a nurse's role includes comforting and reassuring the patient to reduce anxiety and promote emotional well-being. This is crucial for the patient's overall experience and can positively impact their recovery. Obtaining preoperative orders (A) is typically the responsibility of the physician. Explaining the surgical procedure (C) is usually done by the surgeon. Providing informed consent (D) involves ensuring the patient understands the risks and benefits of the procedure, which is typically the responsibility of the healthcare provider performing the procedure.

Correct Answer: C

Rationale: The correct answer is C: Weighing the client before and after the procedure. This is crucial as it helps monitor fluid removal during dialysis, ensuring the process is effective and safe. Weighing helps determine if the correct amount of fluid has been removed. A: Keeping dialysis supplies in a clean area is important for infection control but not a direct responsibility during the procedure. B: Inspecting the catheter insertion site for signs of infection is essential for monitoring the site's health but not a direct responsibility during dialysis. D: Washing hands before and after handling the catheter is a general infection control measure but not specific to the dialysis procedure itself.

Correct Answer: C

Rationale: The correct answer is C: General to specific assessment. This type of assessment approach involves starting with a broad overview of the patient's condition and then narrowing down to specific details. In this scenario, the nurse begins by examining the surgical dressing, which is a specific aspect of the patient's condition, after which they can proceed to gather more detailed information about the drainage, wound healing, and any associated symptoms. This approach allows the nurse to systematically assess the patient's postoperative status and identify any potential issues. A: Gordon’s Functional Health Patterns is a comprehensive framework for organizing patient data, but it does not specifically address the sequence of assessment in this scenario. B: Activity-exercise pattern assessment focuses on the patient's activity level and exercise habits, which is not the primary concern in this situation. D: Problem-oriented assessment involves identifying and addressing specific health problems, but it does not capture the systematic progression from general to specific assessment as seen in this scenario.