HESI LPN
Medical Surgical HESI
1. Laboratory findings indicate that a client’s serum potassium level is 2.5 mEq/L. What action should the nurse take?
- A. Administer potassium supplements orally.
- B. Increase the client's dietary potassium intake.
- C. Inform the healthcare provider of the need for potassium replacement.
- D. Monitor the client's ECG continuously.
Correct answer: C
Rationale: A serum potassium level of 2.5 mEq/L is critically low, indicating severe hypokalemia. In this situation, it is essential for the nurse to inform the healthcare provider promptly about the need for potassium replacement. Administering potassium supplements orally or increasing dietary potassium intake is not appropriate in cases of critically low potassium levels as immediate and precise replacement is necessary. Monitoring the client's ECG continuously is important in severe cases of hypokalemia, but the priority action should be to inform the healthcare provider for further management and treatment.
2. An infant has been diagnosed with cradle cap. What is the correct intervention to treat the scalp?
- A. Alcohol
- B. Mineral oil
- C. Calamine
- D. A&D ointment
Correct answer: B
Rationale: Cradle cap is a common condition in infants characterized by crusty patches on the scalp. The correct intervention to treat cradle cap is to apply mineral oil. Mineral oil helps soften the crusty patches, making it easier to remove them gently. Alcohol (Choice A) can be too harsh for an infant's sensitive skin and may cause irritation. Calamine (Choice C) is used to relieve itching associated with conditions like chickenpox or insect bites, not for treating cradle cap. A&D ointment (Choice D) is typically used for diaper rash and minor skin irritations, not for cradle cap.
3. A client who is newly diagnosed with emphysema is being prepared for discharge. Which instruction is best for the nurse to provide the client to assist them with dyspnea self-management?
- A. Allow additional time to complete physical activities to reduce oxygen demand.
- B. Practice inhaling through the nose and exhaling slowly through pursed lips.
- C. Use a humidifier to increase home air quality humidity between 30-50%.
- D. Strengthen abdominal muscles by alternating leg raises during exhalation.
Correct answer: B
Rationale: The correct answer is B. Instructing the client to practice inhaling through the nose and exhaling slowly through pursed lips can help improve oxygenation and reduce dyspnea. This technique, known as pursed lip breathing, can help regulate breathing patterns and decrease the work of breathing in clients with emphysema. Choice A is incorrect because allowing additional time for physical activities does not directly address dyspnea management. Choice C is incorrect as using a humidifier, although beneficial for respiratory conditions, does not specifically assist with dyspnea self-management. Choice D is also incorrect as strengthening abdominal muscles through leg raises does not directly target dyspnea relief.
4. Which instruction should be included in the discharge teaching plan for a client who has had a cataract extraction today?
- A. Use a metal eye shield on the operative eye during the day.
- B. Administer eye ointment after applying eye drops.
- C. Light housekeeping is safe to do, but avoid heavy lifting.
- D. Refrain from sexual activities until follow-up appointment.
Correct answer: C
Rationale: The correct instruction to include in the discharge teaching plan for a client who has had a cataract extraction is that light housekeeping is safe to do, but heavy lifting should be avoided to prevent increased intraocular pressure. Choice A is incorrect as the eye shield is usually worn at night to protect the eye. Choice B is incorrect as eye ointment is usually applied after eye drops to avoid washing away the ointment. Choice D is incorrect as sexual activities should be avoided until the follow-up appointment to prevent complications.
5. The nurse is caring for a client with a nasogastric tube. Which action should the nurse take to ensure proper functioning of the tube?
- A. Flush the tube with 50 mL of normal saline every 8 hours
- B. Clamp the tube when not in use
- C. Position the client in a supine position
- D. Verify tube placement by checking pH of gastric contents
Correct answer: D
Rationale: Verifying tube placement by checking the pH of gastric contents is crucial to ensure the nasogastric tube is correctly positioned in the stomach. This action helps prevent complications such as aspiration. Flushing the tube with normal saline every 8 hours is not necessary for ensuring proper functioning of the tube. Clamping the tube when not in use may lead to the build-up of gastric secretions and blockages. Positioning the client in a supine position is not directly related to ensuring the proper functioning of the nasogastric tube.
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