ATI RN
ATI Pathophysiology Exam 3
1. Which of the following imbalances is found in clients with syndrome of inappropriate antidiuretic hormone (SIADH)?
- A. Decreased insulin production
- B. Decreased antidiuretic hormone (ADH) production
- C. Increased secretion of antidiuretic hormone (ADH)
- D. Increased production of insulin
Correct answer: C
Rationale: The correct answer is C: Increased secretion of antidiuretic hormone (ADH). Syndrome of inappropriate antidiuretic hormone (SIADH) is characterized by the excessive release of ADH, which leads to water retention and dilution of blood sodium levels. Choices A, B, and D are incorrect because SIADH is not associated with decreased insulin production, decreased ADH production, or increased production of insulin.
2. A patient is prescribed medroxyprogesterone acetate (Provera) for the treatment of endometriosis. What key instruction should the nurse provide regarding the administration of this medication?
- A. Take the medication at the same time each day to maintain consistent hormone levels.
- B. Discontinue the medication if side effects occur.
- C. Take the medication with food to prevent gastrointestinal upset.
- D. Apply the medication once a week.
Correct answer: A
Rationale: The correct instruction for medroxyprogesterone acetate (Provera) is to take the medication at the same time each day to maintain consistent hormone levels and ensure its effectiveness. Choice B is incorrect because discontinuing the medication abruptly without consulting healthcare providers can be harmful. Choice C is incorrect as taking the medication with food is not necessary for this specific drug. Choice D is incorrect as medroxyprogesterone is typically taken orally, not applied topically.
3. A 70-year-old woman has difficulty with driving, and she has been frequently getting lost. Her husband said she has also been acting strangely and seems to want to sleep a lot. He said the other night she kept saying she was seeing animals such as lions in her room. He says her memory is not too bad, but he is very concerned about her health. Physical examination reveals an alert woman with stable vital signs. Bradykinesia and limb rigidity are noted. These findings are consistent with:
- A. Alzheimer's disease.
- B. vascular dementia.
- C. dementia with Lewy bodies.
- D. frontotemporal dementia.
Correct answer: C
Rationale: The correct answer is dementia with Lewy bodies (DLB). Hallucinations, parkinsonian symptoms (like bradykinesia and limb rigidity), and fluctuating cognition are characteristic of DLB. Alzheimer's disease (Choice A) typically presents with memory loss as a prominent feature. Vascular dementia (Choice B) is associated with a history of strokes and step-wise cognitive decline. Frontotemporal dementia (Choice D) often presents with changes in behavior and personality rather than the parkinsonian symptoms seen in this case.
4. A nurse is providing education to a patient starting hormone replacement therapy (HRT) for menopausal symptoms. What should the nurse emphasize regarding the long-term 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 improve mood and energy levels.
- D. HRT may decrease the risk of breast cancer.
Correct answer: A
Rationale: HRT is associated with an increased risk of cardiovascular events, including heart attack and stroke, particularly with long-term use.
5. A 56-year-old woman has been experiencing memory loss and confusion for the past year. The client is diagnosed with Alzheimer's disease. Which finding is most characteristic of this disease?
- A. Neurofibrillary tangles in the brain
- B. Demyelination of neurons in the brain
- C. Accumulation of beta-amyloid plaques
- D. Formation of Lewy bodies
Correct answer: C
Rationale: The correct answer is C: Accumulation of beta-amyloid plaques. Alzheimer's disease is characterized by the accumulation of beta-amyloid plaques in the brain. These plaques are formed from the buildup of beta-amyloid protein fragments between nerve cells. Choice A, neurofibrillary tangles, are a hallmark of another neurodegenerative disease called Alzheimer's disease. Choice B, demyelination of neurons, is more characteristic of diseases like multiple sclerosis. Choice D, formation of Lewy bodies, is associated with Lewy body dementia, not Alzheimer's disease.
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