Correct Answer: D

Rationale: Determining the specific medications ingested is the priority for guiding immediate treatment in the Emergency Department. Knowing when the client last took medications and her current mood are also important, but the ingested medications are the most urgent information needed. The client's current mood and affect are crucial for assessing her immediate state, but the priority is to identify the substances she ingested to provide appropriate interventions. While understanding the history of previous suicide attempts is relevant for assessing the client's risk, the immediate focus should be on the medications taken during this specific incident.

Correct Answer: B

Rationale: Prothrombin time (PT) measures the time it takes for blood to clot and is a critical indicator of bleeding risk in clients with liver dysfunction. Impaired liver function reduces clotting factor production, leading to an increased PT, which requires close monitoring. Monitoring BUN (Choice A) is more indicative of kidney function, not clotting ability. Aspartate aminotransferase (AST) (Choice C) and serum albumin (Choice D) are important indicators of liver function, but they do not directly assess the client's bleeding risk.

Correct Answer: A

Rationale: The correct answer is A. In this scenario, the most critical information for the nurse to obtain during the initial interview is the recent compliance with prescribed medications. This is crucial to understand the client's baseline condition and management of chronic emphysema. Monitoring medication adherence can provide insights into potential exacerbating factors that may have led to the current acute symptoms. Choices B, C, and D are not as crucial in this situation. Sleep patterns, smoking history, and activity levels are important aspects of the client's overall health but do not take precedence over medication compliance when addressing acute symptoms in a client with chronic emphysema.

Correct Answer: B

Rationale: After a lumbar puncture, a severe headache is often caused by cerebrospinal fluid leakage. Elevating the head of the bed or having the client lie flat can reduce cerebrospinal fluid pressure and alleviate the headache. These positions help prevent further fluid loss and relieve discomfort. While acetaminophen or caffeine may help in relieving the headache, changing the client's position is the priority to address the underlying cause. Resting in a dark room may be beneficial for headache relief but is not the priority intervention compared to adjusting the position to manage cerebrospinal fluid pressure.

Correct Answer: A

Rationale: Late decelerations indicate fetal distress due to compromised placental perfusion. Repositioning the client onto her left side is the priority intervention as it can increase blood flow to the placenta, improving fetal oxygenation. Applying oxygen via nasal cannula (choice B) can be the next step after repositioning if late decelerations persist. Emergency cesarean section (choice C) is not the initial action for late decelerations unless other interventions are ineffective. Increasing IV fluid administration (choice D) is not the first-line intervention for late decelerations; repositioning takes precedence to address the underlying cause.