ATI RN
Pathophysiology Practice Questions
1. During the home visit of a client with dementia, the nurse notes that an adult daughter persistently corrects her father’s misperceptions of reality, even when the father becomes upset and anxious. Which intervention should the nurse teach the caregiver?
- A. Anxiety-reducing measures
- B. Positive reinforcement
- C. Reality orientation techniques
- D. Validation techniques
Correct answer: D
Rationale: The correct answer is D: Validation techniques. In dementia care, using validation techniques involves acknowledging the person's feelings and reality, even if it differs from actual events or facts. It helps in reducing the client's anxiety and distress. In this scenario, the daughter persistently correcting her father's misperceptions can escalate his anxiety. Teaching the daughter validation techniques will encourage her to validate her father's feelings and perceptions, ultimately promoting a more supportive and less confrontational environment. Choices A, B, and C are incorrect in this context. While anxiety-reducing measures can be beneficial, the primary issue here is the father's misperceptions being consistently corrected. Positive reinforcement focuses on rewarding desired behaviors, which is not directly related to the situation described. Reality orientation techniques involve constantly reminding the person of the correct time, place, and other details, which may not be suitable for someone with dementia experiencing distress.
2. In a patient with renal failure secondary to an overdose of a nephrotoxic drug, which assessment findings would the nurse recognize as being most suggestive of impaired erythropoiesis?
- A. Frequent infections and low neutrophil levels
- B. Fatigue and increased heart rate
- C. Agitation and changes in cognition
- D. Increased blood pressure and peripheral edema
Correct answer: A
Rationale: Impaired erythropoiesis refers to a decreased production of red blood cells. This can lead to anemia, resulting in symptoms like fatigue and increased heart rate (Choice B). However, the question specifically asks about assessment findings suggestive of impaired erythropoiesis. In this context, frequent infections and low neutrophil levels (Choice A) are more directly related to impaired erythropoiesis due to the impact of anemia on the immune system. Frequent infections are common in anemia due to a compromised immune response, and low neutrophil levels can be seen in conditions of impaired erythropoiesis. Agitation and changes in cognition (Choice C) are more indicative of neurological issues, while increased blood pressure and peripheral edema (Choice D) are commonly associated with renal failure but not specifically related to impaired erythropoiesis.
3. A patient is taking raloxifene (Evista) for osteoporosis. What is the primary therapeutic effect of this medication?
- A. It stimulates the formation of new bone.
- B. It decreases bone resorption and increases bone density.
- C. It increases the excretion of calcium through the kidneys.
- D. It increases calcium absorption in the intestines.
Correct answer: B
Rationale: The correct answer is B. Raloxifene, a selective estrogen receptor modulator (SERM), primarily works by decreasing bone resorption and increasing bone density. This mechanism of action helps in the prevention and treatment of osteoporosis by maintaining or improving bone strength. Choice A is incorrect because raloxifene does not directly stimulate the formation of new bone but rather helps in preserving existing bone. Choice C is incorrect because raloxifene does not increase the excretion of calcium through the kidneys; instead, it acts on bone tissue. Choice D is incorrect as raloxifene does not directly increase calcium absorption in the intestines but rather focuses on bone health.
4. When planning care for a cardiac patient, the nurse knows that in response to an increased workload, cardiac myocardial cells will:
- A. Increase in size
- B. Decrease in length
- C. Increase in excitability
- D. Increase in number
Correct answer: A
Rationale: The correct answer is A: Increase in size. Cardiac hypertrophy occurs when myocardial cells increase in size to compensate for an increased workload. This adaptation allows the heart to pump more effectively. Choice B, Decrease in length, is incorrect as cardiac cells do not decrease in length in response to increased workload. Choice C, Increase in excitability, is incorrect as increased workload does not lead to an increase in excitability of cardiac cells. Choice D, Increase in number, is incorrect as cardiac cells do not increase in number but rather increase in size to handle the increased workload.
5. A 74-year-old woman states that many of her peers underwent hormone replacement therapy (HRT) in years past. The woman asks the nurse why her primary care provider has not yet proposed this treatment for her. What fact should underlie the nurse's response to the woman?
- A. The risks of stroke and breast cancer are unacceptably high in women taking HRT.
- B. HRT was found to cause mood disturbances in many women who used it long term.
- C. HRT was found to be a significant risk factor for bone fractures and osteoporosis.
- D. The risks of chronic obstructive pulmonary disease were found to be significantly higher in women using HRT.
Correct answer: A
Rationale: The correct answer is A because the main reason HRT is not recommended for all women is due to the increased risks of stroke and breast cancer associated with its use. Hormone replacement therapy (HRT) has been linked to an elevated risk of stroke and breast cancer, which outweigh its potential benefits for many individuals. Choices B, C, and D are incorrect as they do not address the primary concerns regarding HRT use. While HRT can indeed cause mood disturbances and may affect bone health, the significant risks of stroke and breast cancer are the primary reasons why healthcare providers may choose not to recommend HRT for some women.
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