ATI RN
ATI Pathophysiology Exam 1
1. What causes hepatic encephalopathy?
- A. A brain infection
- B. Increased ammonia levels in the bloodstream
- C. Decreased albumin blood levels
- D. Untreated chronic bronchitis
Correct answer: B
Rationale: Hepatic encephalopathy is caused by increased ammonia levels in the bloodstream. Ammonia, a byproduct of protein metabolism normally processed by the liver, accumulates in the bloodstream when the liver is unable to function properly. This excess ammonia affects brain function, leading to symptoms of hepatic encephalopathy. Choices A, C, and D are incorrect because they do not directly relate to the pathophysiology of hepatic encephalopathy.
2. A patient with a history of cardiovascular disease is prescribed hormone replacement therapy (HRT). What should the nurse emphasize regarding the long-term risks associated with HRT?
- A. HRT is associated with an increased 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 increase 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 in patients with a history of cardiovascular disease.
3. How does tamsulosin (Flomax) primarily benefit male patients with benign prostatic hyperplasia (BPH)?
- A. Relaxation of the muscles in the prostate and bladder neck, leading to improved urinary flow.
- B. Reduction in prostate size and improvement in urinary symptoms.
- C. Increase in urine flow and relief of urinary obstruction.
- D. Improvement in erectile function.
Correct answer: A
Rationale: The correct answer is A: Tamsulosin works by relaxing the muscles in the prostate and bladder neck, which helps improve urinary flow in patients with BPH. This relaxation reduces the symptoms associated with BPH, such as urinary hesitancy, urgency, and frequency. Choice B is incorrect because tamsulosin does not directly reduce the size of the prostate gland. Choice C is incorrect as while tamsulosin does improve urine flow, its primary mechanism of action is through muscle relaxation rather than directly relieving obstruction. Choice D is incorrect as tamsulosin is not indicated for improving erectile function; its main therapeutic effect is targeted towards urinary symptoms related to BPH.
4. A patient is prescribed testosterone gel for hypogonadism. What important instruction should the nurse provide regarding the application of this medication?
- A. Apply the gel to the chest or upper arms.
- B. Apply the gel to the face and neck.
- C. Apply the gel to the genitals for maximum absorption.
- D. Apply the gel to the scalp and back.
Correct answer: A
Rationale: The correct answer is to apply the testosterone gel to the chest or upper arms. This is recommended to minimize the risk of unintentional transfer of the medication to others, especially women and children, through skin contact. Applying the gel to the face, neck, or genitals is not advised as it can lead to unintended exposure to others. Additionally, applying the gel to the scalp or back is not appropriate as these areas are not indicated for absorption of testosterone.
5. In clients with a cognitive impairment disorder, the phenomenon of increased confusion in the early evening hours is called:
- A. Aphasia.
- B. Agnosia.
- C. Sundowning.
- D. Confabulation.
Correct answer: C
Rationale: The correct answer is C: Sundowning. Sundowning is a phenomenon where individuals with cognitive impairment experience increased confusion and agitation in the late afternoon or early evening. This often occurs in conditions like dementia. Choice A, Aphasia, refers to a language disorder affecting a person's ability to communicate. Choice B, Agnosia, is the inability to recognize objects. Choice D, Confabulation, is the production of false memories without the intention to deceive, often seen in conditions like Korsakoff's syndrome.
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