Correct Answer: A

Rationale: The correct action for the nurse to take is to contact the pharmacy and request the prescribed form of aspirin. Enteric-coated medications are designed to dissolve in the intestine, not the stomach, to avoid irritation. Therefore, it is essential to ensure the client receives the correct form of aspirin as prescribed. Instructing the client about the effects of the medication (choice B) is not necessary at this point as the issue is related to the form of the aspirin. Administering the aspirin with a full glass of water or a small snack (choice C) is not appropriate as it does not address the need for the correct form of the medication. Withholding the aspirin (choice D) without consulting the healthcare provider is not advisable as it may lead to a delay in the client receiving the necessary medication.

Correct Answer: B

Rationale: The correct answer is to observe the mother breastfeeding her infant. This action is essential to ensure that the infant is feeding well and to assess maternal-infant bonding. Administering the rubella vaccine subcutaneously (Option A) is not the immediate priority in this scenario as assessing breastfeeding is more crucial. Calling the nursery for the infant's blood type result (Option C) is premature and not the next appropriate step, as it does not address the immediate needs of the newborn. Administering Vicodin one tablet for pain (Option D) is not indicated without further assessment or indication of pain, making it an incorrect choice at this time.

Correct Answer: A

Rationale: The priority nursing intervention for a client with a tracheostomy on mechanical ventilation is to suction the tracheostomy as needed. Suctioning is essential to maintain a clear airway and prevent respiratory distress. While ensuring tracheostomy ties are secure (choice B) is important, it is not as urgent as airway maintenance. Providing humidified oxygen (choice C) is beneficial but does not address the immediate need for airway clearance. Cleaning exudate around the tracheostomy site (choice D) is important for hygiene but takes precedence over ensuring airway patency through suctioning.

Correct Answer: B

Rationale: The correct answer is B. Maintaining a consistent intake of vitamin K-rich foods is important for patients taking warfarin as it helps keep the effects of the medication stable. Choice A is incorrect because while green leafy vegetables are high in vitamin K, they should not be avoided completely but rather consumed consistently. Choice C is also incorrect as avoiding all foods containing vitamin K can lead to fluctuations in warfarin's effectiveness. Choice D is incorrect as a high-protein diet is not specifically recommended for patients taking warfarin.

Correct Answer: D

Rationale: Maintaining a patent airway is the priority nursing action during the immediate postoperative period for a client who just underwent a coronary artery bypass graft. This is crucial to ensure adequate oxygenation, especially in the early recovery phase. Monitoring for signs of infection, ensuring the client is pain-free, and assessing for bleeding and arrhythmias are important aspects of postoperative care but maintaining a clear airway takes precedence in this scenario to prevent hypoxia and respiratory compromise. In the immediate postoperative period, maintaining a patent airway is essential to prevent complications such as airway obstruction, hypoxia, and respiratory distress, which are critical in ensuring the client's safety and recovery.