Correct Answer: B

Rationale: Prothrombin time (PT) is the correct laboratory value to monitor to assess the therapeutic effect of warfarin. Warfarin works by inhibiting clotting factors, and PT measures the time it takes for blood to clot. Monitoring PT helps ensure that the medication is working effectively to prevent clot formation without causing excessive bleeding. Platelet count (Choice A) is not specific to warfarin therapy and assesses the number of platelets in the blood. White blood cell count (Choice C) and hemoglobin level (Choice D) are not directly related to monitoring the therapeutic effect of warfarin.

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.

Correct Answer: B

Rationale: Fixed, dilated pupils are a sign of increased intracranial pressure or brain injury, indicating a potentially serious neurological condition. Flaccid paralysis, although concerning, may not always indicate immediate life-threatening issues. Diminished spinal reflexes and reduced sensory responses are important neurological assessments but are not as acutely concerning as fixed, dilated pupils in this context.

Correct Answer: D

Rationale: The correct answer is D: "I need to get the client's written consent before I release any information to you." In this scenario, the nurse must obtain the client's written consent before disclosing any information to the social worker. This process ensures compliance with privacy laws like HIPAA, which are designed to protect client confidentiality. Choice A is incorrect because it does not address the need for consent. Choice B is incorrect as it is unprofessional and does not focus on obtaining consent. Choice C is incorrect as it suggests information can be shared without consent, which goes against privacy laws.

Correct Answer: B

Rationale: Offering frequent snacks of foods the client enjoys is the most appropriate action to enhance the nutritional intake of a client with Alzheimer's disease. This approach helps to ensure that the client receives an adequate amount of nutrients throughout the day, especially when larger meals might be challenging for individuals with Alzheimer's. Encouraging large meals in one sitting (Choice A) may overwhelm the client and lead to decreased food intake. While foods high in fiber (Choice C) are beneficial for digestion, the primary focus should be on providing foods the client enjoys to increase intake. Discouraging eating late at night (Choice D) is not directly related to enhancing nutritional intake in this scenario.