Correct Answer: B

Rationale: During a fire evacuation, it is crucial for ambulatory clients to be reminded to walk carefully down the stairs. This helps ensure the safety of the client by preventing falls or injuries during the evacuation process. Directing the client to proceed cautiously down the stairs until reaching a lower floor provides necessary guidance to promote a safe evacuation process. Choice A is incorrect because assigning unlicensed assistive personnel to transport the client via a wheelchair may delay the evacuation process and increase the risk of injury. Choice C is incorrect as it distracts the ambulatory client from evacuating safely by involving them in assisting another client. Choice D is incorrect as opening fire doors may not be the most appropriate action at that moment; prioritizing safe evacuation procedures for ambulatory clients is essential.

Correct Answer: D

Rationale: Orthopnea (D) is most consistent with left-sided heart failure. It is characterized by difficulty breathing when lying flat and is relieved by sitting up or standing. Dependent edema (A), ascites (B), and nocturia (C) are more commonly associated with right-sided heart failure. Dependent edema refers to swelling due to fluid accumulation, ascites is the accumulation of fluid in the peritoneal cavity, and nocturia is the excessive need to urinate during the night, all of which are more indicative of right-sided heart failure.

Correct Answer: C

Rationale: It is essential for clients using herbal therapies to obtain herbs from manufacturers with a history of quality control for their supplements. This recommendation is crucial because quality control processes help in maintaining the purity and effectiveness of the herbal supplements. Option A is incorrect as it provides a negative and inaccurate generalization about herbs. Option B is also incorrect as there is existing evidence on the safety and efficacy of certain herbal supplements. Option D is not the most relevant information to offer initially to a client seeking advice on the general use of herbal supplements.

Correct Answer: A

Rationale: The correct dietary instruction for a client taking warfarin is to avoid foods high in vitamin K. Warfarin is an anticoagulant that works by inhibiting vitamin K-dependent clotting factors. Consuming foods high in vitamin K, such as leafy green vegetables, can antagonize the effects of warfarin, potentially leading to treatment inefficacy or fluctuations in anticoagulation levels. Therefore, clients on warfarin therapy should be advised to avoid foods high in vitamin K to maintain the effectiveness of the medication. Choices B, C, and D are incorrect because increasing leafy green vegetables (choice B) would introduce more vitamin K, consuming a consistent amount of foods high in potassium (choice C) is not directly related to warfarin therapy, and limiting high-protein foods (choice D) is not a specific concern for clients on warfarin therapy.

Correct Answer: C

Rationale: In a client with a history of coronary artery disease (CAD) experiencing chest pain, the priority intervention for the nurse to implement first is to apply oxygen via nasal cannula. Oxygenation is crucial to ensure adequate oxygen supply to the tissues and the heart. This intervention takes precedence over administering sublingual nitroglycerin, obtaining an ECG, or initiating continuous cardiac monitoring. While these interventions are important, ensuring adequate oxygenation is the initial priority in the management of a client with chest pain.