ATI RN
Pathophysiology Practice Exam
1. A patient is prescribed dutasteride (Avodart) for benign prostatic hyperplasia (BPH). What outcome should the nurse expect to observe if the drug is having the desired effect?
- A. Decreased size of the prostate gland
- B. Increased urinary output
- C. Increased urine flow
- D. Decreased blood pressure
Correct answer: A
Rationale: The correct answer is A: Decreased size of the prostate gland. Dutasteride is a medication used for BPH to reduce the size of the prostate gland, thereby improving urinary flow and decreasing symptoms. Choice B, increased urinary output, is incorrect as dutasteride primarily targets the size of the prostate gland rather than directly affecting urinary output. Choice C, increased urine flow, is related to the expected outcome of dutasteride therapy but is not as direct as the reduction in the size of the prostate gland. Choice D, decreased blood pressure, is not an expected outcome of dutasteride therapy for BPH.
2. A patient began antiretroviral therapy several weeks ago for the treatment of HIV, and he has now presented to the clinic for a scheduled follow-up appointment. He states to the nurse, “I've been pretty good about taking all my pills on time, though it was a bit hit and miss over the holiday weekend.†How should the nurse best respond to this patient's statement?
- A. “Remember that if you miss a dose, you need to take a double dose at the next scheduled time.â€
- B. “It's acceptable to miss an occasional dose as long as your symptoms don't worsen, but it's important to strive for consistent adherence.â€
- C. “Remember that your antiretroviral drugs will only be effective if you take them consistently and as prescribed.â€
- D. “If you're not consistent with taking your medications, you're likely to develop more side effects.â€
Correct answer: C
Rationale: The correct response is to remind the patient that antiretroviral drugs are most effective when taken consistently and as prescribed. Choice A is incorrect because taking a double dose after missing a dose is not recommended, as it can lead to medication toxicity. Choice B is incorrect as it may give the impression that missing doses is acceptable, which can reduce the effectiveness of the treatment. Choice D is incorrect because while consistency is important, the focus should be on treatment effectiveness rather than side effects.
3. Ivermectin (Stromectol) appears on a list of a patient's recent medications. The nurse who is reviewing the medications is justified in suspecting that the patient may have been receiving treatment for a parasitic infection with
- A. Entamoeba histolytica.
- B. Giardia lamblia.
- C. Strongyloides stercoralis.
- D. Plasmodium falciparum.
Correct answer: C
Rationale: Ivermectin (Stromectol) is commonly used to treat parasitic infections, particularly Strongyloides stercoralis. This parasitic infection is known to respond well to Ivermectin therapy. Entamoeba histolytica causes amoebiasis and is typically treated with antiprotozoal drugs like metronidazole, not Ivermectin. Giardia lamblia is a protozoan parasite causing giardiasis, which is usually treated with medications like metronidazole or tinidazole, not Ivermectin. Plasmodium falciparum is a malaria-causing parasite and is not treated with Ivermectin but with antimalarial medications like chloroquine or artemisinin-based combination therapies.
4. A 51-year-old woman has the following clinical findings: thin hair, exophthalmos, hyperreflexia, and pretibial edema. These findings are consistent with:
- A. Subacute thyroiditis.
- B. Autoimmune thyroiditis.
- C. Graves disease.
- D. Hashimoto’s disease.
Correct answer: C
Rationale: The clinical findings of thin hair, exophthalmos, hyperreflexia, and pretibial edema are classic features of Graves disease, an autoimmune disorder that results in hyperthyroidism. Exophthalmos (bulging eyes) and pretibial edema (swelling in the lower legs) are particularly associated with Graves disease due to the autoimmune stimulation of the thyroid gland, leading to increased thyroid hormone production. Subacute thyroiditis (Choice A) typically presents with neck pain and tenderness, while autoimmune thyroiditis (Choice B) is commonly known as Hashimoto's thyroiditis, which presents with hypothyroidism symptoms. Hashimoto's disease (Choice D) is characterized by goiter and hypothyroidism, which contrasts with the hyperthyroidism seen in this patient.
5. Which of the following women is at highest risk for the development of endometrial cancer?
- A. A 50-year-old postmenopausal woman with a history of high-risk human papillomavirus
- B. A 45-year-old woman who is obese and has a menstrual pattern consisting of periods of amenorrhea and infrequent periods
- C. A 40-year-old woman who is overweight and has hypertension
- D. A 55-year-old woman who smokes
Correct answer: B
Rationale: The correct answer is a 45-year-old woman who is obese and has a menstrual pattern consisting of periods of amenorrhea and infrequent periods. Obesity and prolonged exposure to estrogen unopposed by progesterone due to infrequent ovulation are significant risk factors for endometrial cancer. Choices A, C, and D do not directly correlate with the increased risk of endometrial cancer. Postmenopausal status alone (Choice A), overweight with hypertension (Choice C), and smoking (Choice D) are not the primary risk factors for endometrial cancer.
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