HESI LPN
HESI Fundamentals Exam
1. A client requires gastric decompression, and a nurse is inserting an NG tube. Which action should the nurse take to verify proper placement of the tube?
- A. Assess the client for a gag reflex
- B. Measure the pH of the gastric aspirate
- C. Place the end of the NG tube in water to observe for bubbling
- D. Auscultate 2.5 cm (1 in) above the umbilicus while injecting 15 mL of sterile water
Correct answer: B
Rationale: Measuring the pH of the gastric aspirate is the most reliable method to confirm proper placement of an NG tube. Gastric fluid has an acidic pH, typically ranging from 1 to 5. Assessing the client for a gag reflex (choice A) is important for airway protection but does not confirm tube placement. Placing the NG tube in water to observe for bubbling (choice C) is incorrect and not a reliable method for verifying placement. Auscultating 2.5 cm above the umbilicus while injecting sterile water (choice D) is an outdated method and is not recommended for verifying NG tube placement.
2. What is the most important assessment for the LPN/LVN to perform on a client with a history of chronic obstructive pulmonary disease (COPD) receiving oxygen therapy at 2 liters per minute via nasal cannula?
- A. Assess the client's respiratory rate and effort.
- B. Measure the client's oxygen saturation level.
- C. Monitor the client's arterial blood gas levels.
- D. Check the client's blood pressure.
Correct answer: B
Rationale: Measuring the client's oxygen saturation level is the most important assessment in this scenario. Oxygen saturation level reflects how well the client is oxygenating, which is crucial in assessing the effectiveness of oxygen therapy for a client with COPD. Monitoring the respiratory rate and effort (Choice A) is important but assessing oxygenation with saturation levels takes precedence. While arterial blood gas levels (Choice C) provide comprehensive information, checking oxygen saturation is a quicker and more immediate way to assess oxygenation status. Checking blood pressure (Choice D) is not the priority when evaluating the effectiveness of oxygen therapy in COPD.
3. A client who has a new prescription for warfarin (Coumadin) is receiving discharge instructions. Which statement indicates the client understands the teaching?
- A. I will take my warfarin at the same time every day.
- B. I should increase my intake of green leafy vegetables.
- C. I should use a soft-bristled toothbrush while taking this medication.
- D. I should avoid drinking alcohol while taking this medication.
Correct answer: C
Rationale: The correct answer is C: 'I should use a soft-bristled toothbrush while taking this medication.' Using a soft-bristled toothbrush is crucial as it helps prevent bleeding gums, which is a potential side effect of warfarin therapy. Option A about taking warfarin at the same time every day is a good practice but does not directly relate to preventing side effects. Option B suggesting an increase in green leafy vegetables can interfere with warfarin's anticoagulant effects due to their vitamin K content. Option D advising to avoid alcohol is generally recommended but is not directly related to the specific side effects of warfarin.
4. When admitting a client with an abdominal wound, which precaution should be taken?
- A. Contact precautions
- B. Droplet precautions
- C. Airborne precautions
- D. Standard precautions
Correct answer: A
Rationale: When admitting a client with an abdominal wound, contact precautions should be implemented. Contact precautions are used to prevent the spread of infections that are spread by direct or indirect contact. In the case of abdominal wounds, bacteria and pathogens can easily be transmitted through contact with the wound or wound drainage. Droplet precautions are used for infections transmitted through respiratory droplets, such as influenza. Airborne precautions are used for infections spread through the air, like tuberculosis. Standard precautions are used for all clients to prevent the spread of infections and should be followed in addition to specific precautions based on the type of infection.
5. During auscultation of the anterior chest wall of a client newly admitted to a medical-surgical unit, what type of breath sounds should a nurse expect to hear?
- A. Normal breath sounds
- B. Adventitious breath sounds
- C. Absent breath sounds
- D. Diminished breath sounds
Correct answer: A
Rationale: During auscultation of the chest, normal breath sounds are the expected findings in a client who is newly admitted without respiratory complaints. Normal breath sounds indicate proper airflow through the airways without any abnormalities. Adventitious breath sounds (Choice B) refer to abnormal lung sounds such as crackles or wheezes, which are indicative of underlying respiratory issues. Absent breath sounds (Choice C) suggest a lack of airflow to a particular lung area, which could be due to conditions like pneumothorax. Diminished breath sounds (Choice D) indicate reduced airflow or consolidation in a specific lung region, often seen in conditions like pleural effusion or pneumonia. Therefore, in a newly admitted client without respiratory complaints, the nurse should expect to hear normal breath sounds during auscultation.
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