A 6-week-old infant with pyloric stenosis is scheduled for a pyloromyotomy. Which pre-operative nursing action has the highest priority?

Choice C is correct because providing supplemental oxygen is the first action that the nurse should take for a client who has a suspected pulmonary embolus. A pulmonary embolus is a life-threatening condition that occurs when a blood clot travels to the lungs and blocks the blood flow, causing hypoxia and respiratory distress. The nurse should administer oxygen to improve the client's oxygenation and prevent further complications.

Choice A is incorrect because notifying the healthcare provider is not the first action that the nurse should take for a client who has a suspected pulmonary embolus. The nurse should notify the healthcare provider after providing supplemental oxygen and assessing the client's vital signs and symptoms.

Choice B is incorrect because preparing a continuous heparin infusion per protocol is not the first action that the nurse should take for a client who has a suspected pulmonary embolus. Heparin is an anticoagulant that can prevent further clot formation and reduce the risk of recurrence, but it does not dissolve existing clots or improve oxygenation. The nurse should prepare a heparin infusion after obtaining a prescription from the healthcare provider and confirming the diagnosis with diagnostic tests.

Choice D is incorrect because bringing the emergency crash cart to the bedside is not the first action that the nurse should take for a client who has a suspected pulmonary embolus. The emergency crash cart contains equipment and medications that can be used in case of cardiac arrest or other emergencies, but it does not address the immediate need of oxygenation. The nurse should bring the emergency crash cart to the bedside after providing supplemental oxygen and assessing the client's condition.

Choice A is correct because a quiet, non-stimulating environment can help reduce the agitation, confusion, and hallucinations that are common in alcohol withdrawal delirium. The nurse should also provide reassurance, orientation, and safety measures to the client.

Choice B is incorrect because forcing oral fluids and providing frequent small meals are not the most important interventions for a client with alcohol withdrawal delirium. The client may have difficulty swallowing, nausea, vomiting, or diarrhea that can interfere with oral intake. The nurse should monitor the client's hydration and nutrition status and provide intravenous fluids or supplements as needed.

Choice C is incorrect because confronting the client's denial of substance abuse is not the most important intervention for a client with alcohol withdrawal delirium. The client may not be able to comprehend or accept the reality of their situation due to their altered mental state. The nurse should avoid arguing or challenging the client and focus on providing supportive care.

Choice D is incorrect because encouraging attendance and group participation are not the most important interventions for a client with alcohol withdrawal delirium. The client may not be able to participate in group activities due to their severe withdrawal symptoms and may need individualized care. The nurse should facilitate referrals to appropriate resources for substance abuse treatment when the client is stable and ready.