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. After receiving a report on an inpatient acute care unit, which client should the nurse assess first?
- A. The client with bowel obstruction due to a volvulus who is experiencing abdominal rigidity
- B. The client who had surgery yesterday and is experiencing a paralytic ileus with absent bowel sounds
- C. The client with an obstruction of the large intestine who is experiencing abdominal distention
- D. The client with a small bowel obstruction who has a nasogastric tube that is draining greenish fluid
Correct answer: A
Rationale: The correct answer is A. Abdominal rigidity in a client with bowel obstruction due to a volvulus indicates possible complications and requires immediate assessment. Choice B is incorrect because although a paralytic ileus with absent bowel sounds is concerning, abdominal rigidity in a client with a volvulus takes priority. Choice C is incorrect as abdominal distention, though indicative of an obstruction, is not as urgent as the sign of abdominal rigidity. Choice D is incorrect as the drainage of greenish fluid from a nasogastric tube in a client with a small bowel obstruction, while concerning, does not present as immediate a threat as the abdominal rigidity in a client with a volvulus.
3. While teaching a young male adult to use an inhaler for his newly diagnosed asthma, the client stares into the distance and appears to be concentrating on something other than the lesson the nurse is presenting. What action should the nurse take?
- A. Remind the client of the importance of using a rescue inhaler for asthma management
- B. Leave the client alone to process his thoughts about the inhaler
- C. Ask the client what he is thinking about at that moment
- D. Pause and inquire if the client has any questions or needs clarification
Correct answer: C
Rationale: In this scenario, the most appropriate action for the nurse to take is to ask the client what he is thinking about at that moment. By doing so, the nurse can understand the client's concerns or distractions, which can then be addressed effectively during the teaching session. Option A is incorrect as it assumes the client is not paying attention due to forgetfulness about the importance of the inhaler, which may not be the case. Option B is incorrect because leaving the client alone without addressing the issue does not facilitate effective learning. Option D, although closer, does not directly address the client's distraction and may not uncover the underlying issue causing the lack of focus.
4. Following morning care, a client with C-5 spinal cord injury who is sitting in a wheelchair becomes flushed and complains of a headache. Which intervention should the nurse implement first?
- A. Check for any kinks or obstructions in the client’s Foley tubing
- B. Assess the client’s blood pressure every 15 minutes
- C. Administer a prescribed PRN dose of hydralazine (Apresoline)
- D. Educate the client on recognizing symptoms of dysreflexia
Correct answer: B
Rationale: In a client with a C-5 spinal cord injury experiencing flushing and a headache, the priority intervention is to assess the client's blood pressure every 15 minutes. These symptoms could indicate autonomic dysreflexia, a potentially life-threatening condition. Assessing the blood pressure is crucial to identify and address this emergency situation promptly. Checking for kinks or obstructions in the Foley tubing (Choice A) is important but not the priority in this scenario. Administering hydralazine (Choice C) without knowing the blood pressure could be harmful as it may lead to a sudden drop in blood pressure. Educating the client on recognizing symptoms of dysreflexia (Choice D) is important for long-term management but is not the immediate action needed in this acute situation.
5. A male client with hypertension, who received new antihypertensive prescriptions at his last visit, returns to the clinic two weeks later to evaluate his blood pressure (BP). His BP is 158/106, and he admits that he has not been taking the prescribed medication because the drugs make him 'feel bad.' In explaining the need for hypertension control, the nurse should stress that an elevated BP places the client at risk for which pathophysiological condition?
- A. Feed the client a snack
- B. Empty the urinary drainage bag
- C. Offer the client oral fluids
- D. Stroke secondary to hemorrhage
Correct answer: D
Rationale: Elevated blood pressure, if left uncontrolled, significantly increases the risk of stroke secondary to hemorrhage and other cardiovascular events. This condition can lead to serious complications due to the increased pressure on the blood vessels in the brain. Choices A, B, and C are unrelated to the potential pathophysiological consequences of uncontrolled hypertension and are not the primary concern in this scenario.
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