ATI RN
ATI Pathophysiology Exam 2
1. After a patient is exposed to a specific antigen, B cells will differentiate into:
- A. B cytotoxic cells
- B. Plasma cells
- C. Bursal cells
- D. Clonal equivalents
Correct answer: B
Rationale: After exposure to a specific antigen, B cells undergo differentiation into plasma cells. Plasma cells are responsible for producing antibodies in response to the antigen. Choice A ('B cytotoxic cells') is incorrect because B cells do not differentiate into cytotoxic cells; cytotoxic cells are typically associated with T cells. Choice C ('Bursal cells') is incorrect as bursal cells are specific to birds and not relevant to human immune responses. Choice D ('Clonal equivalents') is incorrect as it does not describe the differentiation process of B cells exposed to antigens.
2. At an 8-month-old well-baby visit, the parent tells the nurse that her infant falls asleep at night during the last bottle feeding but wakes up when moved to the infant’s crib. What is the most appropriate response for the nurse to make?
- A. You should put your baby to sleep 1 hour earlier without the nighttime feeding but with a pacifier for soothing.
- B. You could place rice cereal in the last bottle feeding of the day to ensure a longer sleep pattern.
- C. You should have your partner give the last bottle of the day and observe whether your infant stays awake for your partner.
- D. You could increase daytime feeding intervals to every 4 hours and put your baby in the crib while the baby is still awake.
Correct answer: D
Rationale: Encouraging the baby to fall asleep in the crib while still awake can help establish healthy sleep habits and reduce night waking.
3. A nurse is updating the plan of care for a client with limited mobility. What intervention should the nurse include to prevent skin breakdown?
- A. Reposition the client every 4 hours
- B. Apply lotion to the skin every 2 hours
- C. Use a special mattress to reduce pressure on the skin
- D. Increase fluid intake to promote skin hydration
Correct answer: C
Rationale: The correct answer is C: 'Use a special mattress to reduce pressure on the skin.' This intervention is crucial in preventing skin breakdown in clients with limited mobility as it helps to reduce pressure on bony prominences. Repositioning every 4 hours (Choice A) is important but may not be sufficient to prevent skin breakdown entirely. Applying lotion every 2 hours (Choice B) may not address the root cause of skin breakdown related to pressure. Increasing fluid intake (Choice D) is beneficial for overall skin health but may not directly prevent skin breakdown caused by pressure points.
4. A technique used to eliminate negative behavior by ignoring the behavior is known as __________.
- A. Punishment
- B. Extinction
- C. Shaping
- D. Equity
Correct answer: B
Rationale: The correct answer is B, 'Extinction.' Extinction is a behavioral psychology technique where undesirable behavior is ignored, leading to its eventual decrease or elimination. This process involves withholding reinforcement that was previously maintaining the behavior. Choice A, 'Punishment,' involves applying negative consequences to reduce unwanted behavior, which is different from extinction. Choice C, 'Shaping,' is a method of gradually molding or reinforcing behaviors to reach a desired behavior, not ignoring negative behavior. Choice D, 'Equity,' refers to fairness and equal treatment, which is unrelated to eliminating negative behavior through ignoring it.
5. Alfred Binet and Theodore Simon __________.
- A. wrote the first book of its time on aging
- B. were among the first to make child development knowledge meaningful to parents
- C. regarded development as a maturational process
- D. constructed the first successful intelligence test Answer: D Page Ref: 14 Skill Level: Remember Topic: Scientific Beginnings Difficulty Level: Moderate
Correct answer: D
Rationale: Alfred Binet and Theodore Simon constructed the first successful intelligence test, known as the Binet-Simon scale, in an effort to measure a child's intelligence level. This test was groundbreaking at the time and laid the foundation for the development of future intelligence tests.
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