Correct Answer: B

Rationale: Corrected Rationale: Prolonged exposure to high oxygen concentrations can disrupt the production of surfactant in the lungs, leading to atelectasis and other lung complications. Surfactant is essential for maintaining lung compliance and preventing alveolar collapse. Reduced cardiac output (Choice A) is not directly associated with prolonged oxygen exposure. Hyperactivity of alveoli (Choice C) is not a recognized consequence of high oxygen levels. Increased oxygen carrying capacity (Choice D) is not a pathophysiological effect of prolonged high oxygen exposure.

Correct Answer: B

Rationale: The correct initial action for a client with anxiety disorder experiencing increased anxiety prior to vaginal delivery is to encourage the client to express her feelings and provide emotional support. Emotional support is crucial in reducing anxiety during childbirth. Initiating breathing techniques or administering medications should come after emotional support has been provided. Increasing sedative doses may not address the underlying emotional needs of the client and can have potential risks.

Correct Answer: B

Rationale: Numb fingertips may suggest neuropathy, a common complication of diabetes that may indicate a worsening condition. Episodes of weakness and palpitations, combined with neuropathy symptoms, could also suggest hypoglycemia or poor glycemic control, requiring further investigation. The other choices are less likely to be directly related to the client's current symptoms. While a history of hypertension is a common comorbidity in clients with diabetes, it may not directly explain the reported weakness and palpitations. Reduced deep tendon reflexes are more indicative of certain neurological conditions rather than acute emerging situations related to the client's current symptoms. An elevated fasting blood glucose level is expected in a client with type 2 diabetes and may not be the primary indicator of an emerging situation in this context.

Correct Answer: A

Rationale: The correct answer is to increase fluid intake to prevent crystalluria, a potential side effect of ciprofloxacin. Crystalluria is the formation of crystals in the urine, which can be reduced by maintaining adequate hydration. Choice B is incorrect because ciprofloxacin can be taken with or without food. Choice C is incorrect as avoiding sunlight exposure is more relevant for medications that cause photosensitivity, not typically a concern with ciprofloxacin. Choice D is less essential than choice A because while reporting changes in urine color is important, preventing crystalluria through adequate fluid intake is a higher priority.

Correct Answer: D

Rationale: The correct answer is D, severe abdominal pain. After a liver biopsy, severe abdominal pain is a critical finding that requires immediate reporting as it may indicate internal bleeding or damage to the liver. The other vital signs provided in choices A, B, and C are within normal limits and may not be directly related to complications post liver biopsy. Therefore, the priority is to address the severe abdominal pain promptly to prevent any further complications.