HESI LPN
Adult Health 1 Final Exam
1. A client with a diagnosis of myocardial infarction (MI) is prescribed nitroglycerin. What is the primary action of this medication?
- A. Increases heart rate
- B. Lowers blood pressure
- C. Dilates coronary arteries
- D. Reduces myocardial oxygen demand
Correct answer: C
Rationale: The correct answer is C: Nitroglycerin dilates coronary arteries, improving blood flow to the heart muscle. This helps increase oxygen supply to the heart tissue. Option A, 'Increases heart rate,' is incorrect because nitroglycerin does not directly affect heart rate. Option B, 'Lowers blood pressure,' is also incorrect as while nitroglycerin can lower blood pressure, its primary action in the context of MI is related to coronary artery dilation. Option D, 'Reduces myocardial oxygen demand,' is not the primary action of nitroglycerin in the treatment of myocardial infarction; its main action is to increase oxygen supply by dilating coronary arteries.
2. A client with a history of asthma is experiencing wheezing and shortness of breath. What is the priority nursing intervention?
- A. Administer a bronchodilator as prescribed
- B. Encourage the client to drink fluids
- C. Place the client in an upright position
- D. Assess the client's peak flow rate
Correct answer: A
Rationale: Administering a bronchodilator as prescribed is the priority nursing intervention for a client experiencing wheezing and shortness of breath due to asthma. Bronchodilators help relieve bronchoconstriction, allowing better airflow and improving breathing. Encouraging the client to drink fluids may be beneficial in certain situations, but it is not the priority when the client is in respiratory distress. Placing the client in an upright position, not supine, can facilitate easier breathing by allowing the chest to expand fully. While assessing the client's peak flow rate is important in asthma management, in this acute situation, the priority is to provide immediate relief by administering the bronchodilator.
3. The nurse is caring for a client with a tracheostomy who is on mechanical ventilation. What is the priority nursing intervention?
- A. Suction the tracheostomy as needed
- B. Ensure the tracheostomy ties are secure
- C. Provide humidified oxygen
- D. Clean any exudate around the tracheostomy site
Correct answer: A
Rationale: The priority nursing intervention for a client with a tracheostomy on mechanical ventilation is to suction the tracheostomy as needed. Suctioning is essential to maintain a clear airway and prevent respiratory distress. While ensuring tracheostomy ties are secure (choice B) is important, it is not as urgent as airway maintenance. Providing humidified oxygen (choice C) is beneficial but does not address the immediate need for airway clearance. Cleaning exudate around the tracheostomy site (choice D) is important for hygiene but takes precedence over ensuring airway patency through suctioning.
4. A client with a history of stroke presents with dysphagia. What is the most important nursing intervention to prevent aspiration?
- A. Encourage the client to drink water between meals
- B. Position the client in a high-Fowler's position during meals
- C. Provide the client with thickened liquids
- D. Allow the client to eat quickly
Correct answer: B
Rationale: The correct answer is B: Position the client in a high-Fowler's position during meals. Placing the client in a high-Fowler's position (sitting upright at a 90-degree angle) helps reduce the risk of aspiration by ensuring that the airway is protected during swallowing. This position facilitates easier swallowing and decreases the likelihood of food or liquids entering the respiratory tract. Encouraging the client to drink water between meals (choice A) does not directly address the risk of aspiration during meals. Providing thickened liquids (choice C) may be necessary for some patients with dysphagia but is not the most important intervention to prevent aspiration. Allowing the client to eat quickly (choice D) without proper positioning and precautions can increase the risk of aspiration.
5. After placement of a left subclavian central venous catheter (CVC), the nurse receives a report of the X-ray findings indicating that the CVC tip is in the client's superior vena cava. Which action should the nurse implement?
- A. Remove the catheter and apply direct pressure for 5 minutes.
- B. Initiate intravenous fluids as prescribed.
- C. Secure the catheter using aseptic technique.
- D. Notify the healthcare provider of the need to reposition the catheter.
Correct answer: B
Rationale: Initiating intravenous fluids as prescribed is the appropriate action when the CVC tip is correctly placed in the superior vena cava. Intravenous fluids can now be administered effectively through the central line. Removing the catheter and applying direct pressure is unnecessary and not indicated as the tip is in the correct position. Securing the catheter using aseptic technique is important for preventing infections but is not the immediate action needed in this situation. Notifying the healthcare provider of the need to reposition the catheter may delay necessary fluid administration, which is the priority at this time.
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