ATI RN
Pathophysiology Exam 1 Quizlet
1. What is the primary action of bisphosphonates when prescribed to a patient with osteoporosis?
- A. It inhibits bone resorption, which helps maintain bone density.
- B. It stimulates new bone formation by increasing osteoblast activity.
- C. It increases calcium absorption in the intestines, which helps build stronger bones.
- D. It decreases calcium excretion by the kidneys, helping to maintain bone density.
Correct answer: A
Rationale: The correct answer is A: "It inhibits bone resorption, which helps maintain bone density." Bisphosphonates work by inhibiting bone resorption carried out by osteoclasts, thereby preventing the breakdown of bones and helping to maintain or increase bone density in patients with osteoporosis. Choices B, C, and D are incorrect because bisphosphonates do not directly stimulate new bone formation, increase calcium absorption in the intestines, or decrease calcium excretion by the kidneys.
2. A client with bipolar disorder is prescribed lithium. Which dietary instruction should the nurse provide?
- A. Avoid foods high in potassium.
- B. Increase intake of caffeinated beverages.
- C. Maintain consistent sodium intake.
- D. Follow a low-protein diet.
Correct answer: C
Rationale: The correct instruction for a client with bipolar disorder prescribed lithium is to maintain consistent sodium intake. Fluctuations in sodium levels can impact lithium levels, potentially leading to toxicity. Therefore, it is crucial to advise the client to keep their sodium intake consistent to ensure the effectiveness and safety of the lithium therapy. Choices A, B, and D are incorrect. Avoiding foods high in potassium is not directly related to lithium therapy. Increasing intake of caffeinated beverages can interfere with the action of lithium. Following a low-protein diet is not a standard recommendation for clients prescribed lithium.
3. How does the concept of neural plasticity relate to recovery from brain injuries?
- A. Neural plasticity means the brain cannot recover from injuries.
- B. Neural plasticity allows the brain to recover and reorganize after injuries.
- C. Neural plasticity refers to the brain's inability to change after injury.
- D. Neural plasticity is a myth.
Correct answer: B
Rationale: Neural plasticity allows the brain to recover and reorganize after injuries. It is the brain's ability to adapt and change, forming new connections or reorganizing existing ones to compensate for damage. Choice A is incorrect as neural plasticity enables recovery. Choice C is incorrect as neural plasticity involves the brain's capacity to change. Choice D is incorrect as neural plasticity is a well-established phenomenon in neuroscience.
4. A client is being taught about patient-controlled analgesia (PCA). Which statement should be included in the teaching?
- A. The PCA will deliver a double dose of medication when you push the button twice.
- B. Continuous PCA infusion is designed to allow fluctuating plasma medication levels.
- C. You should push the button before physical activity to allow maximum pain control.
- D. You can adjust the amount of pain medication you receive by pushing on the keypad.
Correct answer: D
Rationale: The correct statement to include in the teaching about PCA is that the client can adjust the amount of pain medication they receive by pushing on the keypad. This empowers the client to control their pain management effectively. Choice A is incorrect because PCA systems are programmed to prevent double dosing when the button is pressed multiple times in quick succession. Choice B is incorrect as continuous PCA infusion aims to maintain a steady plasma medication level. Choice C is incorrect because it is not necessary to push the button before physical activity to ensure maximum pain control; the client should use the PCA as needed for pain relief.
5. A guideline that is utilized in determining priorities is to assess the status of the following, EXCEPT:
- A. perfusion
- B. locomotion
- C. respiration
- D. mentation
Correct answer: D
Rationale: When determining priorities in patient care, assessing perfusion, respiration, and locomotion are crucial. However, assessing mentation is also important but not typically included in the ABCs of emergency care. Monitoring mentation is essential for neurological assessment and detecting changes in mental status, but it is not part of the immediate priorities in life-threatening situations.
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