Correct Answer: D

Rationale: The correct answer is 'Pleuritic pain.' Pleuritic pain is characterized by sharp, knife-like pain that worsens with deep breathing or coughing and is localized to a specific area. This type of pain is often associated with inflammation of the pleura. Choices A, B, and C are incorrect. Angina pectoris is a type of chest pain caused by reduced blood flow to the heart muscle. Cardiogenic pain refers to pain originating from the heart itself. Myocardial infarction is the medical term for a heart attack.

Correct Answer: B

Rationale: In this scenario, the client reporting unrelieved chest pain after taking a nitroglycerin tablet could be indicative of a serious cardiac event. Instructing the client to call 911 is the most appropriate response because immediate medical attention is necessary for chest pain that is not relieved by nitroglycerin. Telling the client to take an aspirin (Choice A) may not address the urgency of the situation, and aspirin might not be appropriate depending on the client's medical history. Having the client take another nitroglycerin tablet (Choice C) without relief could lead to overdosage. Advising the client to come to the office (Choice D) is not the best course of action when dealing with a potential cardiac emergency that requires immediate intervention.

Correct Answer: C

Rationale: When providing instructions for home oxygen therapy, it is important to ensure safety and proper care. Choices A, B, and D are all essential instructions for the client and family. Choice C, 'Apply petroleum jelly around and inside the nares,' is incorrect. Petroleum jelly should not be used near oxygen sources as it is flammable and can increase the risk of fire hazard. Therefore, this instruction should not be included in the teaching.

Correct Answer: A

Rationale: The correct answer is A. The client's statement indicates a need for further teaching because the flowmeter indicates the flow rate of oxygen, not the total amount of oxygen being delivered. Choices B, C, and D demonstrate understanding of safety measures and indications for seeking medical attention in relation to home oxygen therapy, making them appropriate statements.

Correct Answer: D

Rationale: The correct answer is to instruct the client to use pursed-lip breathing. This technique helps improve breathing efficiency by keeping the airways open during exhalation and reducing air trapping. Restricting fluid intake to less than 2 L/day is not appropriate for a client with COPD, as they need adequate hydration. Using the upper chest for respiration is incorrect as it promotes shallow breathing, which is not ideal for COPD patients. While exercise is beneficial, early-morning hours may not be the best time for clients with COPD due to increased respiratory distress in the morning.