which type of cell is responsible for producing antibodies in the immune system
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Nursing Elites

HESI LPN

PN Exit Exam 2023 Quizlet

1. Which type of cell is responsible for producing antibodies in the immune system?

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 is post-operative day two from an abdominal surgery and reports feeling weak and lightheaded when attempting to get out of bed. What is the nurse's priority action?

Correct answer: B

Rationale: The nurse's priority action should be to assist the client back to bed and monitor vital signs. The client's symptoms of feeling weak and lightheaded could indicate potential issues like hypotension or dehydration, which need to be assessed promptly. Encouraging fluids (Choice A) could be beneficial but is not the immediate priority. Administering an antiemetic (Choice C) may not address the underlying cause of the client's symptoms. Notifying the healthcare provider (Choice D) can be done after the client has been stabilized and assessed.

3. What information should the PN collect during the admission assessment of a terminally ill client to an acute care facility?

Correct answer: B

Rationale: Correct Answer: B. Understanding the client's wishes regarding organ donation is crucial as it aligns with end-of-life care preferences and ensures that the client's decisions are respected. While obtaining the name of a funeral home (Choice A) may be necessary, it is not typically part of the initial admission assessment. Contact information for the client's next of kin (Choice C) is important for communication but may not be directly related to the client's immediate end-of-life wishes. Health care proxy information (Choice D) is vital for decision-making if the client becomes incapacitated but may not be the primary focus during the initial admission assessment.

4. Which of the following is the most effective way to prevent the spread of infection in a healthcare setting?

Correct answer: C

Rationale: Performing hand hygiene is the most effective way to prevent the spread of infection in a healthcare setting. Hand hygiene helps remove pathogens that could be transmitted through direct contact, making it a crucial practice in infection control. While using sterile gloves and disposable equipment are important in certain situations, they do not address the potential transmission of pathogens through direct contact, unlike hand hygiene. Wearing a face mask is important for respiratory precautions but may not be as effective as hand hygiene in preventing the spread of infections through direct contact.

5. A client has a prescription for a transcutaneous electrical nerve stimulator (TENS) unit for pain management during the postoperative period following a lumbar laminectomy. Which information should the PN reinforce about the action of the adjuvant pain modality?

Correct answer: D

Rationale: The TENS unit works by providing a mild electrical stimulus to the skin, which helps to 'close the gate' on pain signals, reducing the perception of pain. Choice A is incorrect because distraction is not the primary mechanism of action for TENS. Choice B is incorrect as it describes a different method of pain management involving medication infusion into the spinal canal. Choice C is incorrect as it inaccurately describes the location of pain perception modulation by the TENS unit.

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