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 healthcare professional is preparing to perform denture care for a client. Which of the following actions should the professional plan to take?
- A. Pull down and out at the back of the upper denture to remove.
- B. Brush the dentures with a toothbrush and denture cleaner.
- C. Rinse the dentures with hot water after cleaning them.
- D. Place the dentures in a clean, dry storage container after cleaning them.
Correct answer: B
Rationale: The correct answer is to brush the dentures with a toothbrush and denture cleaner. This action ensures effective cleaning of the dentures. Dentures should be rinsed with cool or lukewarm water, not hot water, to prevent damage. Placing the dentures in a clean, dry storage container is not the immediate next step after cleaning; they should be kept moist to prevent warping.
3. The client is post-operative following abdominal surgery. Which of the following assessment findings would require immediate intervention?
- A. Absent bowel sounds
- B. Saturated abdominal dressing
- C. Pain level of 8/10
- D. Temperature of 100.4°F
Correct answer: B
Rationale: A saturated abdominal dressing is a critical finding that may indicate active bleeding or wound complications. Immediate intervention is necessary to prevent further complications, such as hypovolemic shock or infection. Absent bowel sounds, though abnormal, are a common post-operative finding and do not require immediate intervention. Pain level of 8/10 can be managed effectively with appropriate pain control measures and does not indicate an urgent issue. A temperature of 100.4°F is slightly elevated but may be a normal post-operative response to surgery and does not typically require immediate intervention unless accompanied by other concerning signs or symptoms.
4. What action should be taken to maintain the patency of a peripherally inserted central catheter (PICC)?
- A. Flush the catheter with heparin solution daily.
- B. Change the dressing at the insertion site daily.
- C. Use sterile technique when changing the dressing.
- D. Keep the insertion site dry at all times.
Correct answer: C
Rationale: The correct answer is to use sterile technique when changing the dressing. This practice is essential for preventing infections that can compromise the patency of the PICC line. While flushing the catheter with heparin solution helps prevent clot formation, it does not directly maintain patency. Changing the dressing daily is important for hygiene but does not have a direct impact on catheter patency. Keeping the insertion site dry is crucial to prevent infections but does not specifically address patency maintenance.
5. A healthcare professional is preparing to insert an NG tube for a client admitted with bowel obstruction. Which of the following should the healthcare professional do first?
- A. Explain the procedure to the client
- B. Measure the length of the NG tube
- C. Lubricate the NG tube
- D. Place the client in a high Fowler’s position
Correct answer: A
Rationale: Explaining the procedure to the client is the initial and most important step that the healthcare professional should take before inserting an NG tube. By explaining the procedure, the healthcare professional ensures the client's understanding, obtains informed consent, and fosters cooperation. Measuring the length of the NG tube, lubricating the tube, and positioning the client in a high Fowler's position are essential steps in the NG tube insertion process but should come after the client has been informed and consented to the procedure.
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