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. A client with a prescription for “do not resuscitate” (DNR) begins to manifest signs of impending death. After notifying the family of the client’s status, what priority action should the nurse implement?
- A. Assess the client’s need for pain medication
- B. Document the impending signs of death
- C. Inform the nurse manager of the client’s status
- D. Communicate the client’s status to the chaplain
Correct answer: A
Rationale: Assessing the client’s need for pain medication is the priority action as it ensures comfort at the end of life. Pain management is crucial in providing comfort and dignity to clients during their final moments. Documenting impending signs of death (choice B) is important but not the immediate priority over addressing the client's comfort. Updating the nurse manager (choice C) and informing the chaplain (choice D) can follow once the client's immediate needs are met.
3. While a patient is receiving beta-1b interferon every other day for multiple sclerosis, which serum laboratory test findings should the nurse monitor to assess for possible bone marrow suppression caused by the medication? (Select all that apply)
- A. Platelet count
- B. White blood cell count (WBC)
- C. Sodium and potassium
- D. Red blood cell count (RBC)
Correct answer: A
Rationale: Beta-1b interferon can lead to bone marrow suppression, impacting blood cell production. Therefore, monitoring the platelet count, white blood cell count (WBC), and red blood cell count (RBC) is essential. Platelet count is a direct indicator of bone marrow function and can show early signs of bone marrow suppression. While sodium, potassium, and albumin/protein levels are important for overall health assessment, they are not directly associated with bone marrow suppression caused by the medication.
4. A client receiving chemotherapy has severe neutropenia. Which snack is best for the nurse to recommend to the client?
- A. Plain yogurt sweetened with raw honey
- B. Peanuts in the shell, roasted or unroasted
- C. Aged farmer’s cheese with celery sticks
- D. Baked apples topped with dried raisins
Correct answer: A
Rationale: The correct answer is A: Plain yogurt sweetened with raw honey. This option is the best choice for a client with severe neutropenia undergoing chemotherapy because it is less likely to harbor harmful bacteria, which could cause infections due to the weakened immune system. Peanuts in the shell (choice B) may carry a risk of contamination, while aged farmer's cheese with celery sticks (choice C) and baked apples topped with dried raisins (choice D) may not be as safe as plain yogurt for a client with severe neutropenia.
5. The nurse is measuring the output of an infant admitted for vomiting and diarrhea. During a 12-hour shift, the infant drinks 4 ounces of Pedialyte, vomits 25 ml, and voids twice. The dry diaper weighs 105 grams. Which computer documentation should the nurse enter in the infant’s record?
- A. Subtract vomitus from 120 ml Pedialyte, then document 95 ml oral intake.
- B. Compare the difference between the infant’s current weight and admission weight.
- C. Document on the flow sheet that the infant voided twice and vomited 25 ml.
- D. Calculate the difference in wet and dry diapers and document 80 ml urine.
Correct answer: C
Rationale: The correct answer is to document on the flow sheet that the infant voided twice and vomited 25 ml. This choice accurately reflects the need for accurate documentation of intake and output, essential for monitoring the infant's hydration status. Choice A is incorrect because the oral intake should not be calculated by subtracting vomitus from the oral intake. Choice B is incorrect because it does not address the specific documentation related to the infant's output. Choice D is incorrect as it focuses on calculating urine output based on diaper weight, which is not the primary concern in this scenario.
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