Correct Answer: B

Rationale: Lethargy and confusion in a client with gastroenteritis are concerning findings that may indicate severe dehydration or electrolyte imbalance, requiring immediate intervention. While the other options are important, they do not pose an immediate life-threatening risk compared to the altered mental status in a client with gastroenteritis.

Correct Answer: B

Rationale: The correct instruction the nurse should provide to a client prescribed ferrous sulfate is to take it with fluids other than coffee or tea. Coffee and tea can inhibit iron absorption. Therefore, choices A, C, and D are incorrect. Avoiding strawberries, citrus fruits, and melon is not necessary for improving absorption of ferrous sulfate, taking it on a full stomach is not recommended, and doubling the dose if a dose is missed can lead to an overdose.

Correct Answer: B

Rationale: The correct answer is to instruct the client to reduce potassium intake. Clients with chronic kidney disease should limit potassium intake to prevent hyperkalemia, as the kidneys may struggle to remove excess potassium. Increasing protein intake between dialysis sessions (Choice A) is not recommended as it can increase urea production, adding to the workload of the kidneys. Avoiding iron supplements (Choice C) is not necessary unless iron levels are high. Expecting weight gain after each dialysis session (Choice D) is incorrect as patients typically experience weight loss due to fluid removal during dialysis.

Correct Answer: B

Rationale: The correct action for the nurse to take in this situation is to discontinue the oxytocin infusion. The client is experiencing uterine hyperstimulation, as evidenced by contractions occurring every 2 minutes and lasting 90 seconds. Discontinuing the oxytocin is crucial to prevent fetal distress and uterine rupture. Increasing the IV fluid rate would not address the uterine hyperstimulation caused by oxytocin. Applying an internal fetal monitor is not the priority at this moment; first, the oxytocin infusion needs to be stopped to manage the uterine hyperstimulation effectively.

Correct Answer: C

Rationale: During triage after a mass casualty event, the client showing signs of hypovolemic shock should be prioritized. Hypovolemic shock is a life-threatening condition that requires immediate attention to restore circulation and prevent death. While clients with head trauma, burns, and fractures also need urgent care, hypovolemic shock poses an immediate threat to life and must be addressed first to stabilize the client's condition.