HESI LPN
HESI Practice Test for Fundamentals
1. A nurse is assessing the heart sounds of a client who has developed chest pain that becomes worse with inspiration. The nurse auscultates a high-pitched scratching sound during both systole and diastole with the diaphragm of the stethoscope positioned at the left sternal border. Which of the following heart sounds should the nurse document?
- A. Pericardial friction rub
- B. Mitral stenosis
- C. Aortic regurgitation
- D. Tricuspid stenosis
Correct answer: B
Rationale: The correct answer is B: Mitral stenosis. A high-pitched scratching sound heard during both systole and diastole with the diaphragm of the stethoscope positioned at the left sternal border indicates mitral stenosis, not a pericardial friction rub. Pericardial friction rub is a to-and-fro, grating, or scratching sound due to inflamed pericardial surfaces rubbing together, typically heard in early diastole and late systole. Aortic regurgitation and tricuspid stenosis would present with different auscultatory findings compared to the described scenario, making them incorrect choices in this context.
2. The healthcare provider is caring for a client who has just been diagnosed with myasthenia gravis. Which symptom should the healthcare provider expect to observe?
- A. Muscle weakness
- B. Joint pain
- C. Vision changes
- D. Skin rash
Correct answer: A
Rationale: Muscle weakness is a hallmark symptom of myasthenia gravis, a neuromuscular disorder characterized by impaired neuromuscular transmission. This results in muscle weakness, particularly in skeletal muscles that control eye movements, facial expressions, chewing, swallowing, and speaking. Joint pain (Choice B) is not a typical symptom of myasthenia gravis and is more commonly associated with conditions like arthritis. Vision changes (Choice C) may occur in conditions affecting the eyes, but they are not specific to myasthenia gravis. Skin rash (Choice D) is also not a typical manifestation of myasthenia gravis. Therefore, the correct answer is muscle weakness (Choice A).
3. After inserting an NG tube for a client, which of the following assessment findings should the nurse expect to confirm correct tube placement?
- A. An x-ray shows the end of the tube above the pylorus.
- B. The tube is aspirated and contains clear gastric fluid.
- C. The tube is flushed with sterile water without resistance.
- D. The client does not cough or choke during tube insertion.
Correct answer: B
Rationale: Correct placement of an NG tube is confirmed by aspirating gastric fluid, which indicates that the tube is in the stomach. An x-ray can help visualize tube placement, but it alone does not confirm correct placement. Flushing the tube with sterile water without resistance indicates patency but not necessarily correct placement. The absence of coughing or choking does not confirm tube placement and is more related to the client's comfort during the procedure.
4. A healthcare provider is preparing to insert an IV catheter into a client's arm before starting IV fluid therapy. Which of the following interventions should the provider implement to prevent infection?
- A. Thread the IV catheter so that the hub rests at the insertion site
- B. Shave excess hair from around the insertion site
- C. Cleanse the site with hydrogen peroxide before IV catheter insertion
- D. Palpate the site carefully just before inserting the IV catheter
Correct answer: A
Rationale: Inserting the IV catheter so that the hub rests at the insertion site reduces the risk of contamination along the length of the catheter. This technique helps prevent introducing microbes into the bloodstream during the catheter insertion process. Shaving excess hair is unnecessary and can increase the risk of skin irritation and infection. Cleansing the site with hydrogen peroxide is outdated as it can cause tissue damage and delay wound healing. Palpating the site just before insertion can introduce bacteria from the skin surface into the insertion site, increasing the risk of infection.
5. Postoperatively, signs of hemorrhagic shock are observed. The nurse notifies the surgeon, who instructs to continue monitoring vitals every 15 minutes and report back in one hour. What should the nurse do next?
- A. Notify the nurse manager
- B. Continue monitoring as instructed
- C. Administer IV fluids as per protocol
- D. Prepare for immediate transfer to the ICU
Correct answer: B
Rationale: The correct answer is to continue monitoring the patient as instructed. This is crucial to assess the patient's condition and response to initial interventions. Administering IV fluids or preparing for transfer to the ICU should only be done based on further assessment or explicit orders from the healthcare provider. Notifying the nurse manager, as suggested in choice A, without further assessment or intervention could delay immediate patient care and management.
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