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. What is the best thing to say to a patient scheduled for cataract surgery who is concerned that the physician works on the correct eye?
- A. You are wearing an ID bracelet that will let the medical team know which eye to work on.
- B. When you are taken to the surgery area, the medical staff will confirm which eye needs the surgery.
- C. The surgeon will mark the correct eye before the cataract surgery based on your medical records.
- D. You will wear an ID bracelet, and the nurse will verify the eye scheduled for surgery by comparing it with your records and marking it with a permanent marker.
Correct answer: D
Rationale: The best response reassures the patient by explaining the process of verifying and marking the correct eye, a safety measure to prevent wrong-site surgery, directly addressing the patient’s concern. Choice A is close but implies the ID bracelet alone determines the correct eye, missing the verification process. Choice B talks about confirmation but lacks details about marking the correct eye. Choice C mentions the surgeon's record but does not specify the direct verification and marking process, unlike Choice D.
3. When administering parenteral iron, which action would be inconsistent with proper administration?
- A. Using the Z-track method
- B. Using an air bubble to avoid withdrawing medication into subcutaneous tissue
- C. Not massaging the injection site
- D. Using the deltoid muscle for administration
Correct answer: D
Rationale: The correct answer is D: Using the deltoid muscle for administration. Administering parenteral iron in the deltoid muscle is not recommended due to the risk of irritation and pain. The Z-track method (choice A) is preferred to prevent staining and irritation of the skin when administering irritating medications like iron. Using an air bubble (choice B) to avoid withdrawing medication into subcutaneous tissue is a common practice to ensure accurate administration. Not massaging the injection site (choice C) is also a standard practice to prevent potential irritation or bleeding at the injection site.
4. A client with blood type AB negative delivers a newborn with blood type A positive. The cord blood reveals a positive indirect Coombs test. Which is the implication of this finding?
- A. The newborn is infected with an infectious blood-borne disease
- B. The newborn needs phototherapy for physiologic jaundice
- C. The mother's Rh antibodies are present in the neonatal blood
- D. The mother no longer needs Rho immune globulin injections
Correct answer: C
Rationale: A positive indirect Coombs test indicates that the mother's Rh antibodies have crossed the placenta and are present in the neonatal blood, which can lead to hemolytic disease of the newborn. This finding necessitates close monitoring and potential intervention. Choice A is incorrect because a positive Coombs test does not indicate an infectious blood-borne disease. Choice B is incorrect as phototherapy for physiologic jaundice is not related to a positive Coombs test result. Choice D is incorrect because a positive Coombs test does not indicate that the mother no longer needs Rho immune globulin injections; in fact, it suggests a need for further management to prevent hemolytic disease of the newborn.
5. When a woman in early pregnancy is leaving the clinic, she blushes and asks the nurse if it is true that sex during pregnancy is bad for the baby. What is the best response for the nurse to give?
- A. The baby is protected by the sac. Sex is perfectly alright.
- B. It is unlikely to harm the baby. What you do with your personal life is your concern.
- C. Intercourse during pregnancy is usually alright, but you need to ask the doctor if it is acceptable for you.
- D. In a normal pregnancy, intercourse will not harm the baby. However, many women experience a change in desire. How are you feeling?
Correct answer: D
Rationale: Choice D is the best response as it reassures the patient that intercourse in a normal pregnancy will not harm the baby. It also shows empathy by acknowledging that many women experience changes in sexual desire during pregnancy. This response validates the patient's concerns and opens up a dialogue about her feelings. Choice A is incorrect as it lacks information about changes in sexual desire and oversimplifies the situation. Choice B is dismissive of the patient's concerns and does not provide adequate information. Choice C is not the best response as it suggests asking the doctor without offering immediate reassurance or addressing the patient's worries.
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