Correct Answer: A

Rationale: A pull toy is the most appropriate choice for an 18-month-old child. At this age, children are developing their motor skills and coordination, and a pull toy can help with these aspects by encouraging movement and coordination. Puzzle with large pieces (Choice B) may pose a choking hazard for a child of this age due to small parts. While a book with large pictures (Choice C) can be engaging and beneficial for language development, a pull toy is more suitable for promoting physical development in an 18-month-old. A doll with small clothes (Choice D) is not ideal for this age group as small parts can be a choking hazard.

Correct Answer: A

Rationale: The correct answer is A because hiring someone to trim low-hanging branches over stairs ensures home safety and reflects an understanding of walker use. This action indicates the client's awareness of potential hazards and the importance of a safe environment for walker use. Choice B is incorrect as avoiding uneven surfaces is a general safety precaution but does not directly relate to walker use and does not demonstrate an understanding of the teaching. Choice C is incorrect because using a walker on stairs is not recommended due to safety concerns such as balance and fall risks. Choice D is incorrect as making no changes to the home environment may pose safety risks when using a walker, showing a lack of understanding regarding safety precautions needed for walker use.

Correct Answer: A

Rationale: In an emergency situation such as dealing with patients of higher acuity due to a large fire, it is crucial for the charge nurse to assume a decision-making role. This style of leadership allows for quick and efficient decision-making to manage the increased acuity of patients effectively. Seeking input from staff (Choice B) may delay critical decisions needed in emergencies. Using a non-directive approach (Choice C) or shared decision-making with others (Choice D) may not be suitable in urgent situations where immediate actions are required to address the high acuity of patients.

Correct Answer: B

Rationale: In this scenario, the nurse is facing a critical situation with a client showing signs of hemorrhagic shock. The surgeon's directive of waiting for an hour without providing immediate intervention poses a risk to the client's well-being. The nurse should prioritize the client's safety and advocate for timely and appropriate care. Notifying the nursing manager is the correct action as it activates the chain of command to ensure that the client receives the necessary care promptly. Documenting the provider's directive, consulting the risk manager, or completing an incident report are not the immediate actions needed to address the client's deteriorating condition and ensure patient safety.

Correct Answer: B

Rationale: The correct answer is B. Petroleum jelly is flammable and should not be used with oxygen therapy due to the risk of fire. The client should avoid using petroleum-based products around oxygen equipment. Choices A, C, and D are all appropriate statements for a client with COPD receiving home oxygen therapy. Keeping the oxygen tank upright ensures proper oxygen flow, avoiding smoking or exposure to smoke helps prevent respiratory aggravation, and knowing to seek medical help promptly for breathing difficulties is essential for managing COPD effectively.