HESI LPN
CAT Exam Practice Test
1. Which type of Leukocyte is involved with allergic responses and the destruction of parasitic worms?
- A. Neutrophils
- B. Lymphocytes
- C. Eosinophils
- D. Monocytes
Correct answer: C
Rationale: Eosinophils are the correct answer. Eosinophils are specialized white blood cells that play a crucial role in allergic responses and combating parasitic infections. They release substances to destroy parasites and modulate allergic reactions. Neutrophils (Choice A) are mainly involved in fighting bacterial infections. Lymphocytes (Choice B) play a key role in the immune response, including antibody production, but are not primarily responsible for combating parasites or allergic responses. Monocytes (Choice D) are involved in immune defense, differentiating into macrophages or dendritic cells, but they are not mainly associated with allergic responses or parasitic worm destruction.
2. The nurse is preparing to administer an IM dose of vitamin B1 (Thiamine) to a male client experiencing acute alcohol withdrawal and peripheral neuritis. The client belligerently states, “What do you think you’re doing?†How should the nurse respond?
- A. “I cannot give you this medication until you calm down.â€
- B. “This shot will help relieve the pain in your feet.â€
- C. “Would you prefer to learn to administer your own shot?â€
- D. “You will feel calmer and less jittery after this shot.â€
Correct answer: B
Rationale: The correct response is to provide a relevant explanation to the client. Choice B, “This shot will help relieve the pain in your feet,†is the best answer because it directly addresses the client's concern about the purpose of the medication. By explaining the potential benefit of the injection, the nurse can alleviate the client's anxiety and increase their cooperation during the procedure. Choice A is incorrect as it dismisses the client's question and may escalate the situation. Choice C is not suitable as it deviates from addressing the client's immediate query. Choice D is incorrect because it fails to specifically address the client's concern regarding the medication's purpose.
3. A female client on the mental health unit frequently asks the nurse when she can be discharged. Then, becoming more anxious, she begins to pace the hallway. What intervention should the nurse implement first?
- A. Review the current treatment plan with the client
- B. Inform the healthcare provider about the client’s behaviors
- C. Determine if the client has PRN medication for anxiety
- D. Explore the client’s reasons for wanting to be discharged
Correct answer: D
Rationale: Exploring the client’s reasons for wanting to be discharged should be the first intervention as it helps to address underlying anxieties and concerns. By understanding the client's motivations, the nurse can provide appropriate support and interventions. It can also reduce distress and improve the therapeutic relationship. Reviewing the treatment plan (Choice A) may be important but addressing the immediate distress takes precedence. Informing the healthcare provider (Choice B) can be considered later if necessary. Determining if the client has PRN medication (Choice C) is relevant, but exploring the underlying reasons for the desire to be discharged is more beneficial in this situation.
4. A client with skin grafts covering full-thickness burns on both arms and legs is scheduled for a dressing change. The client is nervous and requests that the dressing change be skipped this time. What action is most important for the nurse to take?
- A. Explain the importance of regular dressing changes
- B. Administer an anti-anxiety medication
- C. Proceed with the scheduled dressing change
- D. Encourage the client to express any anxieties
Correct answer: A
Rationale: In this situation, the most important action for the nurse to take is to explain the importance of regular dressing changes to the client. By doing so, the nurse can help the client understand the necessity for wound healing and infection prevention. Administering anti-anxiety medication (Choice B) may not address the root cause of the client's anxiety, which is the lack of understanding. Proceeding with the scheduled dressing change (Choice C) without addressing the client's concerns can worsen their anxiety and decrease trust. Encouraging the client to express any anxieties (Choice D) is important but not as crucial as ensuring the client comprehends the rationale behind the dressing change.
5. After the diagnosis and initial treatment of a 3-year-old with Cystic fibrosis, the nurse provides home care instructions to the mother. Which statement by the child's mother indicates that she understands home care treatment to promote pulmonary functions?
- A. Chest physiotherapy should be performed twice a day before a meal
- B. Energy should be conserved by scheduling minimally strenuous activities
- C. Administer a cough suppressant every 8 hours
- D. Maintain supplemental oxygen at 4 to 6 L/minute
Correct answer: A
Rationale: The correct answer is A. Chest physiotherapy is essential for maintaining pulmonary function in cystic fibrosis. It should be performed regularly, often twice daily, to clear mucus from the lungs. Choice B is incorrect because conserving energy does not directly promote pulmonary function. Choice C is incorrect as cough suppressants are not typically used to promote pulmonary function in cystic fibrosis. Choice D is incorrect as maintaining supplemental oxygen at 4 to 6 L/minute is not a standard home care treatment for promoting pulmonary functions in cystic fibrosis.
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