Why does working with oxygen require special safety precautions?

Correct Answer: B

Rationale: The correct answer is B: Oxygen is a dangerous fire hazard. Oxygen supports combustion, making fires burn hotter and faster. Special safety precautions are needed to prevent fires caused by oxygen leaking or coming into contact with flammable materials. Choice A is incorrect because the cost of oxygen is not the reason for safety precautions. Choice C is incorrect as oxygen levels typically do not need frequent adjustments in most settings. Choice D is incorrect as oxygen equipment can be durable and well-designed for safety.

Correct Answer: D

Rationale: The correct answer is D because rolling dirty linen away from the nursing assistant prevents contamination and exposure to pathogens. By rolling the linen, the nursing assistant minimizes the risk of spreading any dirt, bacteria, or other contaminants on their uniform or skin. This method ensures proper infection control practices. Explanation for why the other choices are incorrect: A: Linen should not be carried close to the nursing assistant's uniform to prevent contamination and cross-contamination. B: Shaking linen to remove wrinkles does not address the proper handling of dirty linen. C: Linen should not be taken from one resident's room to another to prevent the spread of infection and maintain hygiene standards.

Correct Answer: A

Rationale: Correct Answer: A - Asking for help if she cannot safely handle the task alone Rationale: Asking for help ensures resident safety and prevents accidents. It demonstrates awareness of limitations and promotes teamwork. Other choices are incorrect: B is important but not the priority, C is too cold, and D compromises resident safety.

Correct Answer: B

Rationale: The correct answer is B (60 to 100 beats per minute) as it reflects the typical range for adults. A (25 to 50 bpm) is too low for a healthy adult, C (0 to 50 bpm) includes unrealistic values, and D (50 to 75 bpm) is too narrow as it excludes the higher end of the normal range. A normal adult heart rate falls within the range of 60 to 100 beats per minute, which is important for efficient circulation and oxygen delivery throughout the body.

Correct Answer: D

Rationale: The correct answer is D: Vegan diet. A vegan diet consists of only plant-based foods, excluding all animal products. This is because vegans do not consume any animal-derived products, including meat, dairy, eggs, and honey. The other choices, A, B, and C, all include some form of animal products in the diet. Lacto-ovo vegetarian diet (A) includes dairy and eggs, lacto-vegetarian diet (B) includes dairy but not eggs, and ovo-vegetarian diet (C) includes eggs but not dairy. Therefore, the vegan diet (D) is the only option that aligns with being entirely plant-based.