HESI LPN
HESI PN Exit Exam 2024 Quizlet
1. What is the primary reason for applying sequential compression devices (SCDs) to a patient’s legs postoperatively?
- A. To prevent deep vein thrombosis (DVT)
- B. To promote wound healing
- C. To reduce postoperative pain
- D. To maintain body temperature
Correct answer: A
Rationale: The correct answer is A: To prevent deep vein thrombosis (DVT). Sequential compression devices (SCDs) are used postoperatively to prevent DVT by promoting blood circulation in the legs. This helps reduce the risk of blood clots forming in the deep veins of the legs. Choice B, to promote wound healing, is incorrect as SCDs are primarily used for circulatory purposes rather than wound healing. Choice C, to reduce postoperative pain, is incorrect as the primary purpose of SCDs is not pain management but rather prevention of DVT. Choice D, to maintain body temperature, is incorrect as SCDs are not designed for regulating body temperature but for preventing circulatory issues.
2. What is the most common genetic cause of intellectual disability?
- A. Down syndrome
- B. Fragile X syndrome
- C. Prader-Willi syndrome
- D. Turner syndrome
Correct answer: B
Rationale: The correct answer is Fragile X syndrome because it is the most common inherited cause of intellectual disability, resulting from a mutation in the FMR1 gene. Down syndrome, Prader-Willi syndrome, and Turner syndrome are not the most common genetic causes of intellectual disability. Down syndrome is caused by the presence of an extra chromosome 21, Prader-Willi syndrome results from specific genetic abnormalities on chromosome 15, and Turner syndrome is characterized by the absence of part or all of one of the X chromosomes.
3. 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.
4. The UAP is caring for a male resident of a long-term care facility who has an external urinary catheter. Which finding should the PN instruct the UAP to report immediately?
- A. Swollen and discolored penile shaft
- B. Prepuce extends over the head of the penis
- C. Leaking urine around the top of the catheter
- D. Moist and excoriated perineal skin folds
Correct answer: A
Rationale: The correct answer is A: Swollen and discolored penile shaft. Swelling and discoloration of the penile shaft may indicate an infection or other complications requiring immediate attention. Prompt reporting allows for timely intervention to prevent further harm to the client. Choice B is incorrect because the prepuce extending over the head of the penis is not an urgent issue. Choice C, leaking urine around the catheter, may require intervention but is not as urgent as the swelling and discoloration described in choice A. Choice D, moist and excoriated perineal skin folds, also needs attention but is not as concerning as the potential complications indicated by the findings in choice A.
5. There has been a serious explosion at a local factory, and many of the injured are arriving at the hospital. Which of the following patients should a nurse attend to first?
- A. A 30-year-old male who is able to walk into the hospital on his own but has numerous lacerations on the chest and face
- B. A 45-year-old male who was brought in on a stretcher, has been assessed as having respiration and circulation within normal limits, and can follow simple commands
- C. A 50-year-old woman who can walk but has a broken arm and numerous lacerations
- D. A 19-year-old man who has numerous lacerations all over the body and whose respiration exceeds 30 breaths per minute
Correct answer: D
Rationale: The correct answer is D. The 19-year-old man with a respiration rate exceeding 30 breaths per minute is showing signs of respiratory distress, indicating a potentially life-threatening condition that requires immediate attention. Patients with respiratory distress should be prioritized as it is a critical condition. Choices A, B, and C describe patients with injuries that are less immediately life-threatening or who are more stable based on the provided information, so they can be attended to after the patient with respiratory distress. Therefore, the nurse should attend to the 19-year-old man first to address his respiratory distress and ensure his condition does not deteriorate further.
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