HESI LPN
HESI Fundamentals Study Guide
1. A nurse in a provider's office is preparing to assess a young adult client's musculoskeletal system as part of a comprehensive physical examination. Which of the following findings should the nurse expect?
- A. Concave thoracic spine posteriorly
- B. Exaggerated lumbar curvature
- C. Concave lumbar spine posteriorly
- D. Exaggerated thoracic curvature
Correct answer: B
Rationale: When assessing a young adult's musculoskeletal system, the nurse should expect an exaggerated lumbar curvature (lordosis). This is a normal finding in young adults due to the natural curvature of the spine. Concave thoracic spine posteriorly (choice A) and concave lumbar spine posteriorly (choice C) are not typical findings as the spine should have normal curvatures. Exaggerated thoracic curvature (choice D) is also not a typical finding in young adults.
2. A nurse is caring for a client who is unstable and has vital signs measured every 15 minutes by an electronic blood pressure machine. The nurse notices the machine begins to measure the blood pressure at varied intervals and the readings are inconsistent. Which of the following actions should the nurse take?
- A. Discontinue the machine and measure the blood pressure manually every 15 minutes.
- B. Adjust the machine settings.
- C. Clean the machine to ensure accuracy.
- D. Increase the frequency of the readings.
Correct answer: B
Rationale: In this scenario, the nurse should adjust the machine settings. If the electronic blood pressure machine is providing varied intervals and inconsistent readings, it indicates a potential malfunction. Changing the settings may help correct the issue and ensure accurate measurements. Discontinuing the machine and measuring manually every 15 minutes (Choice A) may be time-consuming and impractical. Cleaning the machine (Choice C) is important for routine maintenance but may not address the current issue of varied intervals and inconsistent readings. Increasing the frequency of the readings (Choice D) does not address the problem of inaccurate measurements caused by the malfunctioning machine.
3. The client is learning about lifestyle changes to manage hypertension. Which statement by the client requires further teaching?
- A. I will reduce my salt intake.
- B. I will exercise for 30 minutes most days of the week.
- C. I will drink alcohol only on the weekends.
- D. I will monitor my blood pressure regularly.
Correct answer: C
Rationale: The correct answer is C. Clients with hypertension should ideally avoid or limit alcohol intake rather than just restricting it to weekends. Excessive alcohol consumption can raise blood pressure and interfere with the effectiveness of hypertension management. Choices A, B, and D are all positive statements that align with managing hypertension: reducing salt intake, regular exercise, and monitoring blood pressure are all beneficial lifestyle changes for individuals with hypertension. Therefore, the statement about drinking alcohol only on weekends requires further teaching to emphasize the importance of reducing alcohol consumption for better blood pressure control.
4. What is the most important action for preventing infection in a client with a central venous catheter?
- A. Changing the catheter dressing every 72 hours.
- B. Flushing the catheter with heparin solution daily.
- C. Ensuring the catheter is clamped when not in use.
- D. Maintaining sterile technique when handling the catheter.
Correct answer: D
Rationale: Maintaining sterile technique when handling a central venous catheter is crucial in preventing infections. This action helps minimize the introduction of pathogens into the catheter site, reducing the risk of contamination and subsequent infection. Changing the catheter dressing every 72 hours, while important, does not directly address the prevention of infection at the insertion site. Flushing the catheter with heparin solution daily helps prevent occlusion but does not primarily focus on infection prevention. Ensuring the catheter is clamped when not in use is essential for preventing air embolism but does not directly relate to infection control.
5. In a mass casualty scenario at a child day care center, which child would the triage nurse prioritize for treatment last?
- A. An infant with intermittent bulging anterior fontanel between crying episodes
- B. A toddler with severe deep abrasions covering over 98% of the body
- C. A preschooler with 1 lower leg fracture and the other leg with an upper leg fracture
- D. A school-age child with singed eyebrows and hair on the arms
Correct answer: B
Rationale: In a mass casualty scenario, the triage nurse would prioritize the toddler with severe deep abrasions covering over 98% of the body for treatment last. This child is categorized as 'expectant' due to the extensive injuries, which are unlikely to be survivable even with immediate treatment. The other choices describe injuries that are serious but have a higher likelihood of survival with appropriate and timely intervention. The infant with an intermittent bulging anterior fontanel may have increased intracranial pressure requiring urgent evaluation, the preschooler with leg fractures can be stabilized and treated effectively, and the school-age child with singed hair likely has superficial burns which can be managed promptly.
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