Correct Answer: A

Rationale: Step-by-step rationale for choosing Albuterol as the correct answer: 1. Albuterol is a rapid-acting bronchodilator that provides immediate relief by relaxing the airway muscles during asthma exacerbation. 2. It is the first-line medication recommended by guidelines for acute asthma attacks due to its quick onset of action. 3. Albuterol helps in opening the airways, improving airflow, and relieving symptoms like shortness of breath and wheezing. 4. Epinephrine is not the first choice for asthma exacerbation as it can have more systemic side effects. 5. Levalbuterol is a similar medication to Albuterol but may not be as widely available or cost-effective. 6. IV corticosteroids are important for long-term control but take longer to show effects, making them less suitable as the initial treatment for acute exacerbation.

Correct Answer: C

Rationale: Rationale for Correct Answer (C): Promoting activity is the most prioritized nursing intervention for a client with CHF. Activity helps improve cardiac function, decreases fluid accumulation, and enhances overall cardiovascular health. It also prevents complications like muscle weakness and deconditioning. It is crucial in managing CHF symptoms and improving the client's quality of life. Summary of Incorrect Choices: A: Administering diuretics helps in reducing fluid overload but does not address the underlying issue of improving cardiac function through physical activity. B: Limiting fluid intake is important, but promoting activity takes precedence as it directly impacts cardiac function and fluid accumulation. D: Maintaining fluid balance is necessary but is a broad concept that includes various interventions, with promoting activity being more focused and critical in CHF management.

Correct Answer: A

Rationale: The correct answer is A: Inspect for visible pulsation. This is because an arteriovenous fistula for hemodialysis should have a visible pulsation, indicating proper blood flow. Palpating for thrill (B) and auscultating for bruit (C) are also common assessments for an arteriovenous fistula, but inspecting for visible pulsation is the most direct and reliable way to assess the patency of the fistula. Percussing for dullness (D) is not relevant in this context as it does not provide information about the vascular access site.

Correct Answer: A

Rationale: The correct answer is A because tolerance is a physiological phenomenon where the body adapts to a drug, requiring higher doses for the same effect. This is a common occurrence with opioids in chronic pain management. Choice B is incorrect as it refers to drug-seeking behavior, not tolerance. Choice C is incorrect because addiction and physical dependence are different concepts. Choice D is incorrect as it relates to a specific scenario of substance abuse alongside chronic pain, not the mechanism behind the need for increased opioid doses in chronic pain management.

Correct Answer: A

Rationale: The correct answer is A: Assess the client's airway. This is the first action because airway patency is the top priority in any emergency situation, including a suspected stroke. Ensuring the client can breathe effectively is crucial to prevent hypoxia and further complications. Administering oxygen (choice B) may be necessary after assessing the airway. Administering aspirin (choice C) should be done after a definitive diagnosis of an ischemic stroke. Performing a CT scan (choice D) is important for diagnosis but is not the first action to take in a suspected stroke scenario.