Correct Answer: A

Rationale: The correct answer is A. Pursed-lip breathing is a nursing consideration for patients with COPD as it helps improve oxygenation and reduces air trapping. While administering bronchodilators and corticosteroids (choice B) is part of the treatment plan, it is typically done by healthcare providers. Monitoring oxygen saturation and arterial blood gases (ABGs) (choice C) is important but not a direct nursing consideration. Teaching the patient how to use an inhaler (choice D) is relevant but not specific to COPD care.

Correct Answer: B

Rationale: After a flexible bronchoscopy, it is essential to withhold food and liquids until the client's gag reflex returns. This precaution helps prevent aspiration, as the gag reflex protects the airway from foreign material. Irrigating the client's throat every 4 hours (Choice A) is unnecessary and may increase the risk of aspiration. Suctioning the client's oropharynx frequently (Choice C) can cause trauma and is not indicated unless there is a specific medical reason for it. Having the client refrain from talking for 24 hours (Choice D) is not necessary after a flexible bronchoscopy.

Correct Answer: C

Rationale: The correct answer is C because taking two medications together helps prevent the development of drug resistance in HIV treatment. Choice A is incorrect because the primary goal of combination therapy is not necessarily a faster recovery. Choice B is incorrect as the main purpose of combining medications in HIV treatment is to prevent resistance rather than improving the immune system. Choice D is incorrect because while it is true that the medications may target different parts of the virus, the main reason for using both together is to prevent resistance.

Correct Answer: C

Rationale: In the 'Background' portion of the report, the nurse should include relevant historical information about the client, such as the fact that the client has no living family members. This information helps provide a more comprehensive understanding of the client's situation. Choices A, B, and D are not typically included in the 'Background' section as they do not pertain to the client's history or background.

Correct Answer: A

Rationale: Crowded living conditions are considered an environmental factor in the epidemiological triangle as they can contribute to the spread of violence. In this context, environmental factors refer to external influences such as social and physical environments. Traumatic brain injury, Alzheimer's disease, and impaired coping abilities are not typically classified as environmental factors in the epidemiological triangle. Traumatic brain injury and Alzheimer's disease are more related to individual health conditions, while impaired coping abilities are more focused on individual psychological factors rather than external environmental influences.