which type of leukocyte is involved with allergic responses and the destruction of parasitic worms
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Nursing Elites

HESI LPN

CAT Exam Practice Test

1. Which type of Leukocyte is involved with allergic responses and the destruction of parasitic worms?

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 practical nurse (PN) is assigned to work with three registered nurses (RN) who are caring for neurologically compromised clients. The client with which change in status is best to assign to the PN?

Correct answer: D

Rationale: The correct answer is D because viral meningitis with a slight increase in temperature is less acute and complex compared to the other conditions. This change in temperature does not indicate a critical or urgent situation requiring immediate attention or intervention beyond the scope of a practical nurse. Choices A, B, and C present more significant changes in health status such as a decrease in Glasgow Coma Scale score, an increase in intracranial pressure indicated by blood pressure changes, and a significant drop in blood pressure, respectively. These changes require closer monitoring and intervention by registered nurses due to the higher acuity and complexity of care needed for these conditions.

3. A male client with cirrhosis has jaundice and pruritus. He tells the nurse that he has been soaking in hot baths at night with no relief of his discomfort. What action should the nurse take?

Correct answer: D

Rationale: Cooler water and oil-based lotion can help relieve pruritus and improve comfort in clients with cirrhosis experiencing jaundice and pruritus. Hot baths can exacerbate itching, so it is important to suggest cooler showers instead. Choice A is incorrect because symptoms like pruritus can be managed. Choice B is not the most appropriate initial intervention for pruritus related to liver disease. Choice C suggests the use of calamine lotion, which may not be as effective as oil-based lotion for relieving pruritus in this case.

4. A 14-year-old male client with a spinal cord injury (SCI) at T-10 is admitted for rehabilitation. During the morning assessment, the nurse determines that the adolescent's face is flushed, his forehead is sweating, his heart rate is 54 beats/min, and his blood pressure is 198/118. What action should the nurse implement first?

Correct answer: A

Rationale: Autonomic dysreflexia is a potentially life-threatening emergency that can be triggered by a distended bladder in clients with spinal cord injuries at T-6 or above. The priority action is to determine if the urinary bladder is distended as this could be the cause of the symptoms observed in the adolescent. Flushing, sweating, bradycardia, and severe hypertension are classic signs of autonomic dysreflexia. Irrigating the urinary catheter, reviewing temperature graphs, or administering an antihypertensive agent are not the initial actions to take when suspecting autonomic dysreflexia.

5. The nurse instructs an unlicensed assistive personnel (UAP) to turn an immobilized elderly client with an indwelling urinary catheter every two hours. What additional action should the nurse instruct the UAP to take each time the client is turned?

Correct answer: A

Rationale: The correct additional action the nurse should instruct the UAP to take each time the immobilized elderly client with an indwelling urinary catheter is turned is to empty the urinary drainage bag. This action helps to prevent backflow of urine, reduces the risk of infection, and prevents bladder distention, which are crucial for the client's comfort and health. Choices B, C, and D are incorrect as they are not directly related to the care of a client with an indwelling urinary catheter. Feeding a snack, offering oral fluids, or assessing breath sounds are important aspects of care but not the immediate action needed when turning a client with an indwelling urinary catheter to prevent complications.

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