HESI LPN
Adult Health 2 Exam 1
1. What is the primary function of neutrophils?
- A. Heparin secretion
- B. Transport oxygen
- C. Phagocytotic action
- D. Antibody formation
Correct answer: C
Rationale: The correct answer is C: Phagocytotic action. Neutrophils are key components of the immune system, primarily involved in the phagocytosis of bacteria and other pathogens. Choice A, Heparin secretion, is incorrect as heparin is primarily secreted by mast cells and basophils. Choice B, Transport oxygen, is incorrect as this is mainly the function of red blood cells. Choice D, Antibody formation, is incorrect as antibody production is primarily carried out by B lymphocytes.
2. The nurse is caring for a client with a diagnosis of myocardial infarction (MI). Which intervention is a priority during the acute phase?
- A. Administer morphine for pain relief.
- B. Encourage the client to perform isometric exercises.
- C. Position the client flat in bed.
- D. Restrict fluid intake.
Correct answer: A
Rationale: Administering morphine is a priority intervention during the acute phase of myocardial infarction (MI). Morphine not only provides pain relief but also reduces myocardial oxygen demand, which is crucial in this situation. Choice B is incorrect because isometric exercises can increase myocardial oxygen demand and are not recommended during the acute phase of MI. Choice C is incorrect as elevating the head of the bed, not keeping the client flat, is preferred to reduce workload on the heart. Choice D is incorrect because fluid intake should be encouraged unless contraindicated, as adequate hydration is essential for cardiac function.
3. When caring for a client with a urinary catheter, what is the most important intervention to prevent infection?
- A. Use sterile technique for catheter care
- B. Ensure the catheter bag is below the level of the bladder
- C. Provide perineal care daily
- D. Change the catheter only when necessary
Correct answer: B
Rationale: The most important intervention to prevent infection when caring for a client with a urinary catheter is to ensure that the catheter bag is below the level of the bladder. This positioning helps prevent urine backflow, reducing the risk of infection. While using sterile technique for catheter care (Choice A) is important, ensuring proper drainage by keeping the catheter bag below the bladder is crucial to prevent infection. Providing perineal care daily (Choice C) is essential for hygiene but not directly related to preventing catheter-related infections. Changing the catheter only when necessary (Choice D) is important for maintenance, but correct positioning of the catheter bag is more critical in preventing immediate infection.
4. The nurse observes that a male client's urinary catheter (Foley) drainage tubing is secured with tape to his abdomen and then attached to the bed frame. What action should the nurse implement?
- A. Raise the bed to ensure the drainage bag remains off the floor
- B. Attach the drainage bag to the side rail instead of the bed frame
- C. Observe the appearance of the urine in the drainage tubing
- D. Secure the tubing to the client's gown instead of his abdomen
Correct answer: D
Rationale: The correct action for the nurse to implement is to secure the tubing to the client's gown instead of his abdomen. Securing the tubing to the client's abdomen can cause discomfort, trauma to the urethra, and increase the risk of infection. Attaching the drainage bag to the bed frame can lead to tension on the catheter, increasing the risk of dislodgement or trauma. Raising the bed does not address the issue of incorrect tubing securing. Observing the appearance of urine is important but secondary to ensuring proper tubing attachment.
5. A client is admitted with a diagnosis of pneumonia. Which intervention should the nurse implement to promote airway clearance?
- A. Administer bronchodilators as prescribed.
- B. Encourage increased fluid intake.
- C. Perform chest physiotherapy.
- D. Provide humidified oxygen.
Correct answer: B
Rationale: Encouraging increased fluid intake is the most appropriate intervention to promote airway clearance in a client with pneumonia. Adequate hydration helps to thin respiratory secretions, making it easier for the client to cough up and clear the airways. Administering bronchodilators (Choice A) may help with bronchospasm but does not directly promote airway clearance. Chest physiotherapy (Choice C) can be beneficial in certain cases but may not be the initial intervention for promoting airway clearance. Providing humidified oxygen (Choice D) can help improve oxygenation but does not specifically target airway clearance in pneumonia.
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