Correct Answer: D

Rationale: The correct answer is D: Dopar. Dopar is a drug that increases dopamine levels by converting into dopamine in the brain. This directly restores dopaminergic activities. Artane (A) is an anticholinergic used for Parkinson's symptoms, Elavil (B) is a tricyclic antidepressant, and Benadryl (C) is an antihistamine, none of which directly target dopaminergic activities like Dopar does.

Correct Answer: A

Rationale: The correct answer is A because it demonstrates data validation in the nursing clinical decision-making process. The nurse assesses the time of the last dressing change and observes old and new drainage, which are relevant data points for wound care. This approach ensures that the decision to remove the dressing is based on accurate and validated information, leading to appropriate patient care. Choice B is incorrect because it relies on subjective information (increased pain and family request) rather than objective data validation. Choice C is incorrect as it involves a direct request for an order without sufficient data validation. Choice D is incorrect because elevating a leg cast based solely on a patient's report of decreased mobility does not involve thorough data validation related to the specific care needed for the patient's condition.

Correct Answer: A

Rationale: The correct answer is A: It inhibits deoxyribonucleic acid (DNA) synthesis. Mitomycin is an alkylating agent that works by cross-linking DNA, preventing DNA synthesis and leading to cell death. This mechanism of action makes it effective against rapidly dividing cells like cancer cells. Choice B, inhibiting ribonucleic acid (RNA) synthesis, is incorrect as mitomycin primarily targets DNA synthesis. Choice C, being cell cycle-phase specific, is incorrect as mitomycin affects cells in all phases of the cell cycle. Choice D, inhibiting protein synthesis, is incorrect because mitomycin's primary mode of action is on DNA replication, not protein synthesis.

Correct Answer: B

Rationale: The correct answer is B: It minimizes the risk of circulatory overload. When a venous access device dislodges during a transfusion, there is a risk of the infusion going into the surrounding tissues instead of the vein, leading to circulatory overload. This can result in fluid overload and potentially lead to serious complications such as heart failure. Monitoring the device ensures that the medication is delivered safely and effectively into the bloodstream. Choices A, C, and D are incorrect: A: Monitoring the device does not directly minimize the risk of phlebitis, which is inflammation of the vein. C: Monitoring the device does not directly minimize the risk of pulmonary complications, which are not typically associated with a dislodged venous access device. D: Monitoring the device does not directly minimize the risk of localized edema embolism, which is a blockage caused by a blood clot, air bubble, or other material in a blood vessel.

Correct Answer: C

Rationale: The correct answer is C: An intravenous set-up. Checking for an intravenous set-up is crucial to ensure that Mrs. Zeno is receiving necessary medications or fluids. It allows the nurse to monitor the infusion rate, prevent potential complications like infiltration, and ensure proper medication administration. A tracheostomy set (A) may be important for respiratory support but not essential for immediate safety. A hypothermia blanket (B) is used for temperature management and not directly related to Mrs. Zeno's immediate safety. A syringe and edrophonium HCl (D) are specific to a diagnostic test for myasthenia gravis and not necessary for general bedside safety assessment.