HESI LPN
HESI Fundamentals Exam
1. During a Weber test, what is an appropriate action for the nurse to take?
- A. Deliver a series of high-pitched sounds at random intervals.
- B. Place an activated tuning fork in the middle of the client's forehead.
- C. Hold an activated tuning fork against the client's mastoid process.
- D. Whisper a series of words softly into one ear.
Correct answer: B
Rationale: During a Weber test, the nurse should place an activated tuning fork in the middle of the client's forehead. This test is used to assess for lateralization of sound in a client with possible hearing issues. Choice A is incorrect because the Weber test does not involve delivering high-pitched sounds at random intervals. Choice C is incorrect as it describes the Rinne test, not the Weber test. Choice D is incorrect as whispering words into one ear is not part of the Weber test procedure.
2. A child weighing 20 kg has a new prescription for cefoxitin at 80 mg/kg/day administered intravenously every 6 hours. How much cefoxitin should be administered with each dose?
- A. 400 mg
- B. 200 mg
- C. 1600 mg
- D. 100 mg
Correct answer: A
Rationale: To determine the amount of cefoxitin to be administered with each dose, first, calculate the total daily dose by multiplying the child's weight (20 kg) by the prescribed dose (80 mg/kg/day): 80 mg/kg/day × 20 kg = 1600 mg/day. Since the medication is administered every 6 hours (4 doses/day), divide the total daily dose by the number of doses: 1600 mg / 4 = 400 mg. Therefore, each dose should be 400 mg. Choice B (200 mg) is incorrect because it is half the calculated dose. Choice C (1600 mg) is incorrect as it represents the total daily dose, not the dose per administration. Choice D (100 mg) is incorrect as it is a quarter of the calculated dose.
3. The client has been diagnosed with deep vein thrombosis (DVT). Which symptom would be most concerning?
- A. Pain in the affected leg
- B. Redness and warmth in the affected leg
- C. Shortness of breath
- D. Swelling in the affected leg
Correct answer: C
Rationale: Shortness of breath is the most concerning symptom in a client with deep vein thrombosis (DVT) because it could indicate a pulmonary embolism, a life-threatening complication where a blood clot travels to the lungs. This condition requires immediate medical attention. While pain, redness, warmth, and swelling in the affected leg are common symptoms of DVT, shortness of breath suggests a more critical situation that necessitates urgent intervention.
4. Following major abdominal surgery, a client postoperative refuses to use the incentive spirometer. What is the nurse's priority?
- A. Determine the reason why the client is refusing to use the incentive spirometer.
- B. Insist that the client use the incentive spirometer.
- C. Administer pain medication to help the client use the spirometer.
- D. Document the refusal in the client’s medical record.
Correct answer: A
Rationale: The nurse's priority in this situation is to determine the reason why the client is refusing to use the incentive spirometer. By understanding the client's concerns or barriers, the nurse can address them effectively and encourage the client to use the spirometer for optimal postoperative recovery. Insisting that the client use the spirometer without understanding the underlying reason may lead to further resistance. Administering pain medication as a solution does not address the root cause of refusal and may not be necessary if pain is not the primary reason for refusal. Documenting the refusal is important but should come after understanding the client's perspective to provide appropriate care and follow-up.
5. The nurse is caring for a client with a central venous catheter. What is the most important action for the nurse to take to prevent infection?
- A. Change the catheter dressing every 72 hours.
- B. Flush the catheter with heparin solution daily.
- C. Ensure the catheter is clamped when not in use.
- D. Maintain sterile technique when handling the catheter.
Correct answer: D
Rationale: Maintaining sterile technique when handling a central venous catheter is crucial in preventing infections. Changing the catheter dressing every 72 hours, while important for overall catheter care, does not directly address infection prevention. Flushing the catheter with heparin solution daily is essential for maintaining patency but does not primarily prevent infections. Ensuring the catheter is clamped when not in use is important for preventing air embolism but is not the most critical action to prevent infection. The most effective way to prevent infections is by strictly adhering to sterile techniques during catheter handling, which minimizes the risk of introducing pathogens into the catheter site.
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