Correct Answer: A

Rationale: Teaching relaxation techniques, such as muscle relaxation, helps the client manage anxiety more effectively. These techniques can be practiced regularly to reduce overall anxiety and can complement prescribed medications. Choice B is incorrect because medication should be taken as prescribed, not only when anxiety is at its worst. Choice C is incorrect as avoiding interactions that trigger stress may not always be feasible and does not teach the client coping mechanisms. Choice D is incorrect as engaging in exercise during anxious periods may not be the most effective strategy for managing moderate anxiety levels.

Correct Answer: D

Rationale: The correct answer is D because the inability to complete sentences without pausing indicates respiratory distress and the need for immediate intervention. This finding suggests an increased work of breathing and inadequate oxygenation. Choices A, B, and C are not as urgent as choice D. Feeling short of breath (choice A) is expected in pneumonia but does not necessarily indicate the need for immediate intervention. An oxygen saturation of 92% (choice B) is slightly below the normal range but may not require immediate intervention. A respiratory rate of 20 breaths per minute (choice C) is within the normal range and does not signify an urgent need for intervention.

Correct Answer: B

Rationale: The combination of nausea, vomiting, yellow vision, and palpitations in a heart failure patient is indicative of digoxin toxicity. The nurse should first obtain a list of the client's medications to verify if they are taking digoxin.

Correct Answer: B

Rationale: The immediate priority for a client with a suspected infection and fever is to take a blood culture before administering antibiotics. This step is crucial to identify the causative organism and ensure appropriate treatment. Administering antipyretics or encouraging fluid intake are important but should come after obtaining the blood culture to avoid interfering with test results. Monitoring vital signs, although essential, is not the immediate priority compared to identifying the infectious agent.

Correct Answer: D

Rationale: Hematuria is a sign of bleeding, which is a potential complication of heparin therapy. Immediate intervention is required to manage the bleeding and adjust the heparin dosage if necessary. Localized warmth, calf pain, and swelling in the affected leg are common findings in clients with DVT and receiving heparin therapy. While these symptoms should be monitored, hematuria indicates a more serious issue requiring immediate attention.