Correct Answer: D

Rationale: A decrease in respiratory rate indicates that the client's breathing is becoming more stable, which suggests an improvement in their condition. Respiratory rate is a critical indicator of respiratory status and oxygenation. Increased white blood cell count (choice A) suggests ongoing infection, crackles on lung auscultation (choice B) indicate fluid in the lungs, and productive cough with green sputum (choice C) may indicate persistent infection or airway inflammation, which do not necessarily reflect improvement in pneumonia.

Correct Answer: C

Rationale: Performing frequent oral care with a tooth sponge is the most appropriate nursing measure in this scenario. This helps maintain comfort and prevent dryness in clients with nasogastric tubes. Allowing the client to melt ice chips in the mouth may not address oral care needs effectively. Providing mints to freshen the breath is not the priority when the client needs oral care. Swabbing the mouth with glycerin swabs may not be as effective as performing thorough oral care with a tooth sponge.

Correct Answer: B

Rationale: Ciprofloxacin can cause crystalluria, so increasing fluid intake to 2-3 liters per day helps flush out the medication and prevent crystal formation in the kidneys. This also ensures adequate hydration, which supports the body's ability to fight the infection. Choice A is incorrect because ciprofloxacin should not be taken with dairy products as they can interfere with the absorption of the medication. Choice D is incorrect because although it's important to complete the full course of antibiotics, it's equally crucial to report any improvement in symptoms to the healthcare provider.

Correct Answer: A

Rationale: The correct answer is A: Recent compliance with prescribed medications. In a client with chronic emphysema experiencing acute symptoms, it is crucial to assess medication compliance as it directly impacts the management of the condition and could contribute to the current presentation. Ensuring that the client has been taking their prescribed medications can provide vital information to guide further treatment. Choices B, C, and D, although important in a comprehensive assessment, are not as immediately crucial as assessing medication compliance in this emergency situation.

Correct Answer: C

Rationale: The correct answer is to advise the client to rise slowly from a sitting or lying position. Beta-blockers can cause bradycardia and hypotension, so clients should be advised to rise slowly to prevent dizziness and falls. Monitoring the client's heart rate and blood pressure regularly is essential. Instructing the client to avoid high-potassium foods (Choice A) is not directly related to beta-blockers. While monitoring the client's heart rate (Choice B) is important, advising the client to rise slowly (Choice C) is more directly related to potential side effects of beta-blockers. Instructing the client to avoid sudden position changes (Choice D) is not as specific or essential as advising them to rise slowly to prevent adverse effects.