HESI LPN
PN Exit Exam 2023 Quizlet
1. Which type of cell is responsible for producing antibodies in the immune system?
- A. B lymphocytes
- B. T lymphocytes
- C. Macrophages
- D. Neutrophils
Correct answer: A
Rationale: The correct answer is A: B lymphocytes. B lymphocytes (B cells) are a crucial part of the adaptive immune system. They produce antibodies, which are proteins that specifically target and neutralize pathogens such as bacteria and viruses. T lymphocytes (choice B) are involved in cell-mediated immunity rather than antibody production. Macrophages (choice C) are phagocytic cells that engulf and digest pathogens but do not produce antibodies. Neutrophils (choice D) are a type of white blood cell that primarily function in the innate immune response by phagocytosing pathogens.
2. A client who had a thyroidectomy 24 hours ago reports tingling around the mouth and in the fingertips. What should the nurse do first?
- A. Check the client’s calcium levels.
- B. Administer a dose of calcium gluconate.
- C. Assess the client's incision site for bleeding.
- D. Notify the healthcare provider.
Correct answer: A
Rationale: Tingling around the mouth and in the fingertips can indicate hypocalcemia, a potential complication after thyroidectomy due to accidental damage to the parathyroid glands. Checking calcium levels is crucial as it helps in diagnosing hypocalcemia accurately. Administering calcium without knowing the actual calcium levels can be dangerous. Assessing the incision site for bleeding is important but not the priority in this situation. Notifying the healthcare provider can be done after assessing and managing the immediate concern of hypocalcemia.
3. After a laparoscopic cholecystectomy, what is the most important instruction the nurse should give the client regarding post-operative care at home?
- A. Avoid lifting heavy objects for at least a week.
- B. Follow a low-fat diet.
- C. Monitor the incision sites for signs of infection.
- D. Resume normal activities as tolerated.
Correct answer: C
Rationale: Monitoring the incision sites for signs of infection is crucial after a laparoscopic cholecystectomy. Infections can lead to serious complications if not detected early. While avoiding heavy lifting and following a low-fat diet are important aspects of recovery, monitoring for infection takes precedence as it directly impacts the client's immediate post-operative well-being. Therefore, option C is the correct answer as it addresses the most critical aspect of post-operative care.
4. Inspiratory and expiratory stridor may be heard in a client who:
- A. Is experiencing an exacerbation of goiter
- B. Is experiencing an acute asthmatic attack
- C. Has aspirated a piece of meat
- D. Has severe laryngotracheitis
Correct answer: D
Rationale: Inspiratory and expiratory stridor are high-pitched, wheezing sounds caused by disrupted airflow due to airway obstruction. Severe laryngotracheitis, involving inflammation and swelling of the larynx and trachea, leads to airway obstruction and can produce both inspiratory and expiratory stridor. Exacerbation of goiter, an acute asthmatic attack, and aspiration of a piece of meat are not typically associated with both inspiratory and expiratory stridor. Therefore, choices A, B, and C are incorrect.
5. Which of the following is a common side effect of opioid analgesics that the nurse should monitor for in patients?
- A. Diarrhea
- B. Hypertension
- C. Constipation
- D. Bradycardia
Correct answer: C
Rationale: Constipation is a common side effect of opioid analgesics due to the slowing of gastrointestinal motility. Opioids bind to receptors in the gastrointestinal tract, leading to decreased peristalsis and increased water absorption, resulting in constipation. Monitoring for constipation is crucial to prevent discomfort or complications like bowel obstruction. Diarrhea (Choice A) is not a common side effect of opioid analgesics. Hypertension (Choice B) and Bradycardia (Choice D) are not typically associated with opioid use.
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