Correct Answer: B

Rationale: The correct answer is B because numb fingers indicate neurovascular compromise, which can lead to serious complications if not addressed promptly. The priority in this situation is to assess and address any circulation issues affecting the extremity. Choices A, C, and D are of concern but not as immediate as neurovascular compromise, which requires urgent attention to prevent further complications.

Correct Answer: C

Rationale: The correct answer is C: 'This medication will decrease swelling and mucus production.' Montelukast is a leukotriene receptor antagonist that works by reducing swelling and mucus production in the airways, helping to manage asthma symptoms in the long term. Choices A, B, and D are incorrect because montelukast is not used for immediate relief during asthma attacks, pre-exercise prophylaxis, or short-term treatment; instead, it is taken regularly for asthma control.

Correct Answer: D

Rationale: The correct answer is D: 'This medication helps decrease swelling and mucus production.' Montelukast is used for long-term asthma management as it helps reduce inflammation and mucus production in the airways. It is not appropriate for acute asthma attacks. Choice A is incorrect because montelukast is not a rescue medication for acute attacks. Choice B is incorrect because montelukast is not specifically taken before exercise. Choice C is incorrect because montelukast is usually taken regularly, not just for a short duration.

Correct Answer: D

Rationale: Chlorine bleach is the most appropriate agent for disinfecting surfaces contaminated with blood. It is effective in killing a wide range of pathogens, including viruses. Hydrogen peroxide (Choice A) is not as effective as chlorine bleach for bloodborne pathogen disinfection. Chlorhexidine (Choice B) and isopropyl alcohol (Choice C) are more commonly used for skin antisepsis rather than surface disinfection, making them less suitable options in this scenario.

Correct Answer: B

Rationale: The nurse should question the prescription to apply heat to the affected extremity for 45 minutes. Heat should not be applied in the first 48 hours after an acute injury, as it can increase swelling. Cold therapy is more appropriate initially. Choices A, C, and D are appropriate actions in the care of a client with a sprained ankle. Elevating the affected extremity helps reduce swelling, wrapping it with a compression dressing provides support, and assessing sensation, movement, and pulse every 4 hours is important to monitor for complications.