HESI RN
HESI RN CAT Exit Exam
1. The nurse assesses a client who is receiving an infusion of 5% dextrose in water with 20 mEq of potassium chloride. The client has oliguria and a serum potassium level of 6.5 mEq/L. What action should the nurse implement first?
- A. Notify the healthcare provider of the laboratory results
- B. Decrease the rate of the IV infusion
- C. Stop the infusion
- D. Administer sodium polystyrene sulfonate (Kayexalate)
Correct answer: C
Rationale: The correct action for the nurse to implement first is to stop the infusion. Stopping the infusion is crucial to prevent further potassium from being administered, which can exacerbate the client's hyperkalemia. Notifying the healthcare provider of the laboratory results (Choice A) can be done after taking immediate action to stop the infusion. Decreasing the rate of the IV infusion (Choice B) may not be sufficient to address the high potassium level quickly. Administering sodium polystyrene sulfonate (Kayexalate) (Choice D) is not the initial action for managing hyperkalemia; stopping the potassium infusion takes precedence.
2. The nurse is assessing a client who has a new cast on the left arm. Which finding should the nurse report to the healthcare provider immediately?
- A. Client reports itching under the cast
- B. Client reports pain at the cast site
- C. Client reports swelling of the fingers
- D. Client reports warmth over the casted area
Correct answer: C
Rationale: Swelling of the fingers can indicate compromised circulation, which is a serious concern in a client with a new cast. It could suggest the development of compartment syndrome, a condition where increased pressure within the muscles can lead to impaired blood flow. This can result in tissue damage and should be addressed promptly. Itching under the cast, pain at the cast site, and warmth over the casted area are common findings after cast application and may not necessarily indicate an urgent issue requiring immediate reporting to the healthcare provider.
3. A client with a history of seizures is being discharged with a prescription for phenytoin (Dilantin). Which instruction should the nurse provide this client?
- A. Take the medication with meals
- B. Avoid alcohol while taking this medication
- C. Limit sodium intake
- D. Take the medication at bedtime
Correct answer: B
Rationale: The correct instruction is to advise the client to avoid alcohol while taking phenytoin. Alcohol can interact with phenytoin, making it less effective and leading to increased side effects. Taking the medication with meals (Choice A) may help reduce gastrointestinal upset but is not the most crucial instruction for this medication. Limiting sodium intake (Choice C) is not directly related to phenytoin therapy. Taking the medication at bedtime (Choice D) is not a standard instruction for phenytoin administration.
4. The nurse is planning care for a client receiving chemotherapy. Which intervention should the nurse include to manage the client's nausea?
- A. Administer an antiemetic before meals
- B. Provide frequent mouth care
- C. Encourage small, frequent meals
- D. Offer clear liquids
Correct answer: A
Rationale: Administering an antiemetic before meals is a crucial intervention to manage chemotherapy-induced nausea. Antiemetics help prevent or reduce nausea and vomiting associated with chemotherapy. Providing frequent mouth care (choice B) is important for managing oral mucositis but not specifically for nausea. Encouraging small, frequent meals (choice C) and offering clear liquids (choice D) are beneficial strategies for managing gastrointestinal side effects but may not be as effective in controlling nausea as administering antiemetics.
5. A client with chronic obstructive pulmonary disease (COPD) is receiving oxygen at 4 liters per minute via nasal cannula. The client becomes lethargic and confused. What action should the nurse take first?
- A. Decrease the oxygen flow rate
- B. Increase the oxygen flow rate
- C. Encourage the client to cough and deep breathe
- D. Monitor the client's oxygen saturation level
Correct answer: A
Rationale: In this scenario, the priority action for the nurse is to decrease the oxygen flow rate. Clients with COPD are sensitive to high levels of oxygen and can develop oxygen toxicity, leading to symptoms like lethargy and confusion. Decreasing the oxygen flow rate helps prevent this complication. Increasing the oxygen flow rate would worsen the client's condition. Encouraging coughing and deep breathing may not address the immediate issue of oxygen toxicity. While monitoring the client's oxygen saturation level is important, taking action to address the oxygen toxicity by decreasing the flow rate is the priority in this situation.
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