Correct Answer: B

Rationale: The correct first step for a healthcare professional who suspects a colleague of diverting narcotics is to report the suspicion to the supervisor. This action is essential to protect patient safety, uphold ethical standards, and comply with legal obligations. Confronting the colleague directly may not only escalate the situation but also jeopardize the investigation process. Ignoring the issue and continuing to work could potentially harm patients and violate professional responsibilities. Notifying the pharmacy, while important, should come after informing the appropriate supervisor or authority within the healthcare facility.

Correct Answer: B

Rationale: Verifying the patient's identity using two identifiers is crucial to ensure the right patient receives the right medication. This process helps prevent medication errors by confirming the patient's identity through at least two unique identifiers, such as name, date of birth, or medical record number. Choice A is not directly related to ensuring patient safety during medication administration. Choice C is incorrect as medications should be prepared in a sterile environment, not just at the healthcare professional's station. Choice D is not a safe practice as medications should be administered at the scheduled time to maintain therapeutic effectiveness.

Correct Answer: A

Rationale: The correct answer is to suction the tracheostomy as needed to maintain a patent airway. After a tracheostomy procedure, the immediate concern is airway patency to prevent respiratory compromise. Suctioning helps clear secretions and maintains a clear airway, reducing the risk of respiratory distress. Monitoring the patient's oxygen saturation (choice B) is important but not the priority compared to ensuring a clear airway. Providing humidified air (choice C) and administering pain medication (choice D) are also essential aspects of care for a patient with a tracheostomy, but they are not the priority when immediate airway management is required.

Correct Answer: C

Rationale: Elevating the head of the bed to 30-45 degrees is the most appropriate intervention to prevent aspiration in a patient with an NG tube. This position helps reduce the risk of regurgitation and aspiration by promoting the proper flow of contents through the gastrointestinal tract and minimizing the chances of stomach contents entering the airway. Flushing the NG tube with water before each feeding may not directly prevent aspiration. Checking the placement of the NG tube is important but does not specifically address the prevention of aspiration. Providing oral care every 4 hours is essential for maintaining oral hygiene but is not directly related to preventing aspiration in a patient with an NG tube.

Correct Answer: A

Rationale: The most critical lifestyle change for a patient with hypertension is to reduce salt intake. Excessive salt consumption can lead to increased blood pressure levels. While limiting alcohol consumption (Choice B) and regular exercise (Choice C) are also beneficial for managing hypertension, reducing salt intake has a more direct impact on blood pressure control. Avoiding high-cholesterol foods (Choice D) is important for heart health but may not have as significant an impact on blood pressure as reducing salt intake.