HESI LPN
PN Exit Exam 2023 Quizlet
1. Prior to giving digoxin, the PN assesses that a 2-month-old infant's heart rate is 120 beats/minute. Based on this finding, what action should the PN take?
- A. Withhold the medication and notify the charge nurse
- B. Give the medication and document the heart rate
- C. Withhold the medication until the next scheduled dose
- D. Request the charge nurse to administer the medication
Correct answer: B
Rationale: A heart rate of 120 beats per minute is within the normal range for a 2-month-old infant. Therefore, it is safe to administer the digoxin and document the heart rate as part of routine care. Choice A is incorrect as withholding the medication is not necessary since the heart rate is normal. Choice C is incorrect as there is no need to delay the administration until the next scheduled dose when the heart rate is within the normal range. Choice D is incorrect as the primary nurse is not needed to administer the medication since the heart rate is normal and falls within the safe range for administration.
2. A dispersion consists of a solute dispersed through a dispersing vehicle. Which of the following dispersions is a liquid for topical application that contains insoluble solids or liquids?
- A. Ointment
- B. Lotion
- C. Paste
- D. Gel
Correct answer: B
Rationale: The correct answer is B, 'Lotion.' A lotion is a liquid dispersion that contains insoluble solids or liquids for topical application. Ointments are more semi-solid and occlusive, pastes are thicker and contain higher concentrations of solids, and gels have a jelly-like consistency due to their three-dimensional network structure. Therefore, among the options, a lotion is the most suitable choice for containing insoluble solids or liquids for topical application.
3. When administering an analgesic to a client with low back pain, which intervention should the practical nurse implement to promote the effectiveness of the medication?
- A. Massage the lower back and position the client in proper alignment
- B. Encourage the client to ambulate frequently and take deep breaths
- C. Assist the client in performing passive and active range of motion exercises
- D. Give medication with a full glass of water and offer high-fiber foods
Correct answer: A
Rationale: Massaging the lower back and positioning the client in proper alignment can help relieve muscle tension and enhance the effectiveness of analgesics by providing additional comfort and promoting better pain management. This intervention directly addresses the site of pain and can improve the medication's efficacy. Choices B, C, and D are incorrect because while they may have benefits in other situations, they are not directly related to promoting the effectiveness of analgesics in clients with low back pain. Encouraging ambulation and deep breathing, assisting with range of motion exercises, and offering water and high-fiber foods are important for overall patient care but are not specific to enhancing analgesic effectiveness in this context.
4. A client with peripheral neuropathy due to cirrhosis is at risk for injury. What should the nurse do?
- A. Protect the client's feet from injury
- B. Apply a heating pad to the affected area
- C. Keep the client's feet elevated
- D. Assess the feet and legs for jaundice
Correct answer: A
Rationale: Protecting the client's feet from injury is critical as peripheral neuropathy can lead to decreased sensation and increased risk of trauma. This measure helps prevent wounds, ulcers, and other complications. Applying a heating pad (Choice B) can worsen symptoms and cause burns due to decreased sensation. Keeping the client's feet elevated (Choice C) may help reduce swelling but does not directly address the risk of injury. Assessing for jaundice (Choice D) is important in cirrhosis but is not directly related to the client's risk of injury due to peripheral neuropathy.
5. 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.
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