ATI RN
Pathophysiology Practice Questions
1. Mrs. Mendoza is a 75-year-old client who has dementia of the Alzheimer’s type and confabulates. The nurse understands that this client:
- A. Denies confusion by being jovial.
- B. Pretends to be someone else.
- C. Rationalizes various behaviors.
- D. Fills in memory gaps with fantasy.
Correct answer: D
Rationale: Confabulation, a common symptom in dementia, involves filling in memory gaps with fabricated stories rather than intentionally pretending to be someone else (Choice B), denying confusion by being jovial (Choice A), or rationalizing various behaviors (Choice C). Confabulation is not a deliberate act but a memory error that results in the creation of false memories.
2. Which of the following is a cause of edema?
- A. Decreased plasma proteins
- B. Hypotension
- C. Dehydration
- D. Polyuria
Correct answer: A
Rationale: The correct answer is A: Decreased plasma proteins. Edema can be caused by decreased plasma proteins, which reduce the osmotic pressure that keeps fluid in the blood vessels. Hypotension (choice B) is low blood pressure and is not a direct cause of edema. Dehydration (choice C) involves a lack of body fluid, but it is not a direct cause of edema. Polyuria (choice D) is excessive urination and not a direct cause of edema.
3. A patient with a history of cardiovascular disease is being prescribed hormone replacement therapy (HRT). What should the nurse include in the patient education regarding the risks associated with HRT?
- A. HRT may increase the risk of cardiovascular events, including heart attack and stroke.
- B. HRT may decrease the risk of osteoporosis.
- C. HRT may increase the risk of venous thromboembolism.
- D. HRT may decrease the risk of breast cancer.
Correct answer: A
Rationale: The correct answer is A. Hormone replacement therapy (HRT) is associated with an increased risk of cardiovascular events, including heart attack and stroke, especially in patients with a history of cardiovascular disease. Choice B is incorrect because HRT does not decrease the risk of osteoporosis; in fact, it may increase the risk of certain conditions like venous thromboembolism, as mentioned in choice C. Choice D is also incorrect as HRT has been associated with a slight increase in the risk of breast cancer.
4. Following a spinal cord injury suffered in a motor vehicle accident, a 22-year-old male has lost fine motor function of his finger and thumb, but is still able to perform gross motor movements of his hand and arm. Which component of his 'white matter' has most likely been damaged?
- A. The inner layer (archilayer)
- B. The middle layer (paleolayer)
- C. The outer layer (neolayer)
- D. The reticular formation
Correct answer: C
Rationale: The correct answer is C: The outer layer (neolayer). The white matter of the spinal cord consists of three layers: the outer layer (neolayer), the middle layer (paleolayer), and the inner layer (archilayer). Damage to the outer layer (neolayer) is likely to affect fine motor skills, explaining the loss of fine motor function in the finger and thumb while gross motor movements remain intact. Choices A, B, and D are incorrect as they do not correspond to the specific layer of the white matter that is typically associated with fine motor control.
5. Which of the following best describes Cushing’s syndrome?
- A. Hypersecretion of growth hormone
- B. Excessive production of cortisol by the adrenal glands
- C. Insufficient production of insulin
- D. Increased levels of ACTH
Correct answer: B
Rationale: Cushing’s syndrome is characterized by the excessive production of cortisol by the adrenal glands, not growth hormone (Choice A), insulin (Choice C), or ACTH (Choice D). The increased cortisol levels lead to a variety of symptoms associated with Cushing’s syndrome.
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