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. A 37-year-old client diagnosed with chronic kidney disease (CKD) is being treated for renal osteodystrophy. Which nursing diagnosis is most likely to be included in this client’s plan of care?

Correct answer: D

Rationale: The correct answer is D. Uremic frost is a condition in which urea and other waste products are excreted through the skin, leaving a powdery residue. This indicates poor hygiene and self-care, common issues in patients with CKD and renal osteodystrophy. Proper hygiene measures are essential to prevent complications. Choices A, B, and C are less likely to be included in the plan of care for a CKD patient with renal osteodystrophy. Choice A is more related to a vascular access issue, choice B is more related to mobility concerns, and choice C is more related to dietary education.

3. During a well-child check-up, what respiratory assessment finding should the nurse anticipate in a 3-year-old?

Correct answer: A

Rationale: A resting respiratory rate of 40 breaths per minute is within the expected range for a 3-year-old child. This is considered normal in this age group as their respiratory rate is generally higher compared to adults. Bronchovesicular breath sounds in the peripheral lung fields are not an expected finding in a 3-year-old. Retractions in the intercostal spaces with each inspiration indicate increased work of breathing and are abnormal. High-pitched whistling sounds over the bronchi are characteristic of wheezing, which is not typically expected in a healthy 3-year-old during a routine check-up.

4. An older client is having photocoagulation for macular degeneration. What intervention should the nurse implement during post-procedure care in the outpatient surgical unit?

Correct answer: A

Rationale: The correct intervention is to apply bilateral eye patches while sleeping. This measure helps protect the eyes and support healing following photocoagulation for macular degeneration. Choice B is incorrect as using a whiteboard is not directly related to post-procedure care for this intervention. Choice C is incorrect as arranging food on the plate in a clockwise order is not relevant to the post-procedure care of photocoagulation. Choice D is incorrect as verbally identifying oneself when entering the room is important for communication but not specific to the post-procedure care in this scenario.

5. What is the primary focus of postoperative nursing care for the client with colon trauma?

Correct answer: D

Rationale: The correct answer is D: Observation for and prevention of infection. Postoperative nursing care for a client with colon trauma primarily focuses on preventing infections. Clients with colon trauma are at high risk for infections due to the disruption of the intestinal barrier. Monitoring for signs of infection, maintaining proper wound care, administering antibiotics as prescribed, and implementing strict aseptic techniques are essential in preventing postoperative infections. Choices A, B, and C are incorrect because elevated coagulation studies, fistulas, and hyponatremia are not the primary concerns in the immediate postoperative period for a client with colon trauma.

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