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MSN 570 Advanced Pathophysiology Final 2024
1. Which of the following statements describes an active cellular membrane exchange process?
- A. Sodium moving out of cells and potassium moving into cells
- B. The movement of water from an area of low solute concentration to an area of high solute concentration
- C. The movement of insulin using a protein to travel across the cell membrane
- D. Oxygen moving across the pulmonary capillaries to an area of high carbon dioxide
Correct answer: A: Sodium moving out of cells and potassium moving into cells
Rationale: The correct answer is A. In active transport, energy is expended to move substances against their concentration gradient. Sodium moving out of cells and potassium moving into cells is an example of active transport because it requires energy to pump these ions across the cell membrane against their concentration gradients. Choices B, C, and D describe passive processes where substances move along their concentration gradients without the input of energy.
2. According to Jean Piaget's cognitive-developmental theory, __________?
- A. children actively construct knowledge as they manipulate and explore their world
- B. children's learning depends on reinforcers, such as rewards from adults
- C. adult teaching is the best way to foster development
- D. rapid development occurs during sensitive periods
Correct answer: A
Rationale: According to Jean Piaget's cognitive-developmental theory, children actively construct knowledge as they manipulate and explore their world. Piaget emphasized that children learn through their own actions and interactions with the environment, leading to cognitive development. Choice B is incorrect because Piaget's theory focuses on children's active engagement in learning rather than passive reinforcement. Choice C is incorrect because Piaget's theory highlights the child's role in constructing knowledge, not solely relying on adult teaching. Choice D is incorrect as it refers to sensitive periods, a concept more associated with other developmental theories like Erikson's psychosocial theory, not Piaget's cognitive-developmental theory.
3. The nurse notes that the fall might also cause a possible head injury. The patient will be observed for signs of increased intracranial pressure which include:
- A. Narrowing of the pulse pressure
- B. Vomiting
- C. Periorbital edema
- D. A positive Kernig's sign
Correct answer: C
Rationale: Periorbital edema is a sign of increased intracranial pressure. It is caused by fluid accumulation around the eyes due to compromised drainage. Narrowing of the pulse pressure is more indicative of shock than increased intracranial pressure. While vomiting can be a sign of increased intracranial pressure, it is not as specific as periorbital edema. A positive Kernig's sign is associated with meningitis, not increased intracranial pressure.
4. A nurse is providing education to the family of a client who has been diagnosed with major depressive disorder. Which of the following instructions should the nurse include?
- A. Encourage the client to avoid caffeine.
- B. Encourage the client to participate in physical activity.
- C. Encourage the client to express their feelings.
- D. Encourage the client to avoid isolation.
Correct answer: D
Rationale: The nurse should instruct the family to encourage the client to avoid isolation. Social support and interaction are crucial for individuals with major depressive disorder as it can help in improving mood, reducing feelings of loneliness, and providing a sense of belonging and support. Choices A, B, and C are not the most appropriate instructions for a client with major depressive disorder. While avoiding caffeine can be beneficial for some individuals with anxiety or sleep issues, it is not a primary intervention for major depressive disorder. Encouraging physical activity and expressing feelings are important aspects of managing depression, but avoiding isolation is more critical to address first.
5. The use of the antibiotic neomycin may decrease the absorption of:
- A. Iron, copper, and zinc
- B. Protein and amino acids
- C. Fat-soluble vitamins
- D. Water-soluble vitamins
Correct answer: C
Rationale: The correct answer is C. Neomycin can interfere with the absorption of fat-soluble vitamins such as vitamins A, D, E, and K. Choice A is incorrect because neomycin does not affect the absorption of iron, copper, and zinc. Choice B is incorrect as neomycin does not impact the absorption of protein and amino acids. Choice D is also incorrect as neomycin does not decrease the absorption of water-soluble vitamins like vitamin C and the B vitamins.
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