HESI LPN
CAT Exam Practice Test
1. While changing a client’s chest tube dressing, the nurse notes a crackling sensation when gentle pressure is applied to the skin at the insertion site. What is the best action for the nurse to take?
- A. Apply a pressure dressing around the chest tube insertion site
- B. Assess the client for allergies to topical cleaning agents
- C. Measure the area of swelling and crackling
- D. Administer an oral antihistamine per PRN protocol
Correct answer: A
Rationale: A crackling sensation indicates subcutaneous emphysema, caused by air trapped under the skin. Applying a pressure dressing around the chest tube insertion site can help manage the issue by preventing further air leakage into the tissues. Choice B is incorrect because the crackling sensation is not related to allergies. Choice C is incorrect as measuring the area does not address the underlying cause. Choice D is incorrect as administering an oral antihistamine is not indicated for subcutaneous emphysema.
2. The nurse should explain to a client with lung cancer that pleurodesis is performed to achieve which expected outcome?
- A. Debulk tumor to maintain patency of air passages
- B. Relieve empyema after pneumonectomy
- C. Prevent the formation of effusion fluid
- D. Remove fluid from the intrapleural space
Correct answer: C
Rationale: The correct answer is C. Pleurodesis is a procedure used to prevent the re-accumulation of pleural effusion by creating adhesion between the pleurae. This helps prevent the formation of effusion fluid. Choices A, B, and D are incorrect because pleurodesis is not performed to debulk tumors, relieve empyema after pneumonectomy, or remove fluid from the intrapleural space. Understanding the purpose of pleurodesis is essential in providing accurate patient education and care.
3. What is the best response when a two-year-old boy begins to cry when his mother starts to leave?
- A. Say, 'Let's wave bye-bye to Mommy.'
- B. Say, 'Let me read this book to you.'
- C. Say, 'Two-year-olds usually stop crying the minute the parent leaves.'
- D. Say, 'Now, now, be a big boy, Mommy will be back soon.'
Correct answer: B
Rationale: The best response in this situation is to offer a distraction to the child. Reading a book can help soothe the child during separation from the parent by redirecting their attention. Choice A might not be as effective as providing a distraction like reading a book. Choice C dismisses the child's feelings and generalizes behavior, which is not helpful. Choice D diminishes the child's emotions and does not provide a constructive way to help the child cope with the separation anxiety.
4. The nurse is assigned to care for a client diagnosed with psoriasis. What behavior by the nurse addresses this client's psychosocial need for acceptance?
- A. Wearing gloves when providing care to the client
- B. Encouraging the client to join a support group
- C. Shaking hands with the client during an introduction
- D. Allowing the client to express their feelings openly
Correct answer: B
Rationale: Encouraging the client to join a support group is the best option to address the client's psychosocial need for acceptance. Support groups provide a sense of belonging, understanding, and acceptance from peers who share similar experiences. This helps the client feel accepted despite their condition. Wearing gloves when providing care, shaking hands during an introduction, and allowing the client to express feelings openly are important but do not directly address the client's need for acceptance.
5. A client is receiving lidocaine IV at 3 mg/minute. The pharmacy dispenses a 500 ml IV solution of normal saline (NS) with 2 grams of lidocaine. The nurse should regulate the infusion pump to deliver how many ml/hour?
- A. 18
- B. 27
- C. 36
- D. 45
Correct answer: D
Rationale: The infusion rate is calculated based on the concentration of lidocaine and the prescribed rate of infusion. First, convert lidocaine's weight to milligrams (2 grams = 2000 mg). Then, use the formula: (Total volume in ml * dose in mg) / 60 minutes. For this case, (500 ml * 2000 mg) / 60 minutes = 45 ml/hour. Therefore, the correct answer is D. Choices A, B, and C are incorrect as they do not reflect the accurate calculation based on the provided concentration and infusion rate.
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