HESI LPN
Practice HESI Fundamentals Exam
1. A client with a history of hypertension is prescribed a diuretic. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the medication?
- A. Monitor serum calcium levels.
- B. Monitor serum potassium levels.
- C. Monitor serum sodium levels.
- D. Monitor serum magnesium levels.
Correct answer: B
Rationale: The correct answer is to monitor serum potassium levels. When a client is prescribed a diuretic, monitoring serum potassium levels is essential to evaluate the medication's effectiveness and to detect potential electrolyte imbalances. Diuretics can cause potassium loss, leading to hypokalemia, which can have serious consequences such as cardiac arrhythmias. Monitoring serum calcium levels (Choice A) is not typically required when assessing the effectiveness of diuretics. Similarly, monitoring serum sodium levels (Choice C) is important for other conditions but is not the primary concern when evaluating diuretic therapy. Monitoring serum magnesium levels (Choice D) is also important, but potassium levels are more critical in assessing diuretic effectiveness and preventing complications.
2. A nurse on a medical-surgical unit is washing her hands prior to assisting with a surgical procedure. Which of the following actions by the nurse demonstrates proper surgical hand-washing technique?
- A. The nurse washes with her hands held higher than her elbows.
- B. The nurse uses an alcohol-based hand rub for 30 seconds.
- C. The nurse scrubs hands and forearms for 2 minutes with soap and water.
- D. The nurse washes her hands with soap and water for only 15 seconds.
Correct answer: A
Rationale: Proper surgical hand-washing technique involves washing with the hands held higher than the elbows. This positioning is essential to ensure proper rinsing and to prevent the risk of contamination. Option B, using an alcohol-based hand rub for 30 seconds, is not specific to surgical hand-washing and is more commonly used for routine hand hygiene. Option C, scrubbing hands and forearms for 2 minutes with soap and water, is excessive and not typically required for routine hand-washing. Option D, washing hands with soap and water for only 15 seconds, is insufficient for thorough surgical hand-washing.
3. What intervention should be taken to minimize the risk for injury in a client with dementia?
- A. Use a bed exit alarm system.
- B. Place the client in restraints for safety.
- C. Ensure the client has frequent visitors to reduce isolation.
- D. Keep the client's room dark and quiet at night.
Correct answer: A
Rationale: The correct intervention to minimize the risk for injury in a client with dementia is to use a bed exit alarm system. Bed exit alarms are effective tools to alert healthcare providers when a client attempts to get out of bed, helping prevent falls and injuries. Placing the client in restraints (Choice B) is not the preferred method as it can lead to physical and psychological harm, restrict mobility, and increase agitation. While social interaction is important for clients with dementia, ensuring frequent visitors (Choice C) is not directly related to preventing physical injuries. Keeping the client's room dark and quiet at night (Choice D) may be soothing for some clients but does not directly address the risk for injury associated with dementia.
4. The LPN observes an unlicensed assistive personnel (UAP) taking a client's blood pressure with a cuff that is too small, but the blood pressure reading obtained is within the client's usual range. What action is most important for the nurse to implement?
- A. Tell the UAP to use a larger cuff at the next scheduled assessment.
- B. Reassess the client's blood pressure using a larger cuff.
- C. Have the unit educator review this procedure with the UAPs.
- D. Teach the UAP the correct technique for assessing blood pressure.
Correct answer: B
Rationale: Reassessing the client's blood pressure using a larger cuff is the most important action for the nurse to implement in this situation. Using the correct cuff size is crucial for obtaining accurate blood pressure readings. By reassessing with a larger cuff, the nurse can ensure an accurate measurement and proper monitoring of the client's blood pressure. Choice A is not the best option as it doesn't address the immediate need for accurate blood pressure measurement. Choice C is not the most appropriate action at this time since the immediate concern is ensuring correct blood pressure assessment. Choice D, while important, is not the most critical step in this scenario where immediate reassessment is needed with the correct cuff size.
5. What action should the LPN/LVN take to prevent postoperative complications in a client who has undergone abdominal surgery?
- A. Encourage the client to use an incentive spirometer regularly.
- B. Assist the client in ambulating as soon as possible.
- C. Position the client in high Fowler's position.
- D. Encourage the client to cough and deep breathe regularly.
Correct answer: A
Rationale: Encouraging the client to use an incentive spirometer regularly is crucial in preventing postoperative complications after abdominal surgery. This action helps prevent atelectasis by promoting lung expansion and improving air exchange in the lungs, reducing the risk of respiratory complications. Assisting the client in ambulating early is important for preventing issues like deep vein thrombosis but may not directly address respiratory concerns postoperatively. Positioning the client in high Fowler's position can help with respiratory distress but is not as specific to preventing postoperative respiratory complications as using an incentive spirometer. While encouraging the client to cough and deep breathe is generally beneficial for lung expansion, using an incentive spirometer is more effective and targeted in preventing atelectasis after abdominal surgery.
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