ATI RN
ATI Pathophysiology Exam 2
1. Which of the following stores electrolytes and acts as an electrolyte pool?
- A. Brain - Kidneys
- B. Bone - Nails
- C. Bone - Liver
- D. Liver - Pancreas
Correct answer: B
Rationale: Bones store electrolytes and act as a reservoir, maintaining a balance of essential minerals like calcium and phosphate. The correct pair in this context is 'Bone - Nails.' Choices A, C, and D are incorrect because the brain, kidneys, liver, and pancreas perform other functions in the body and are not primarily responsible for storing electrolytes.
2. A patient has been prescribed sildenafil (Viagra) for erectile dysfunction. What important information should the healthcare provider provide?
- A. This medication can cause sudden hearing loss.
- B. This medication should not be taken more than once a day.
- C. You should avoid taking this medication with high-fat meals.
- D. Avoid taking nitrates while on this medication.
Correct answer: D
Rationale: The correct answer is D. Sildenafil (Viagra) should not be taken with nitrates due to the risk of severe hypotension. Nitrates can potentiate the hypotensive effects of sildenafil, leading to a dangerous drop in blood pressure. Choice A is incorrect because sudden hearing loss is a rare but serious side effect associated with sildenafil, not a common side effect. Choice B is not the most important information related to sildenafil use. While it is generally recommended not to exceed one dose per day, the interaction with nitrates is more critical. Choice C is also important to consider as high-fat meals can delay the onset of action of sildenafil, but it is not as crucial as avoiding nitrates.
3. Which of the following women are 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 menstrual irregularities with 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 B. Obesity and irregular menstrual cycles, including periods of amenorrhea and infrequent periods, are significant risk factors for the development of endometrial cancer. Choice A is less likely as postmenopausal status reduces the risk. Choice C is not directly associated with a high risk of endometrial cancer. Choice D, smoking, is more strongly linked to other types of cancers like lung cancer rather than endometrial cancer.
4. An older adult patient has asked her primary care provider for a prescription that will help to resolve her “warped toenails.” The care provider has diagnosed the woman with onychomycosis. The nurse should anticipate that this patient will be treated with what drug?
- A. Micafungin (Mycamine)
- B. Terbinafine (Lamisil)
- C. Voriconazole (Vfend)
- D. Fluconazole (Diflucan)
Correct answer: B
Rationale: The correct answer is B: Terbinafine (Lamisil). Terbinafine is commonly used to treat onychomycosis, a fungal infection of the toenails or fingernails. It works by stopping the growth of the fungus. Micafungin (Mycamine) is an antifungal medication used for different types of fungal infections but is not typically used to treat onychomycosis. Voriconazole (Vfend) is another antifungal medication used for specific fungal infections, but it is not a first-line treatment for onychomycosis. Fluconazole (Diflucan) is also an antifungal medication, but it is more commonly used for yeast infections and may not be as effective for treating onychomycosis compared to terbinafine.
5. A hemoglobin electrophoresis is done to evaluate for sickle cell disease. The report reveals the person has HbAS, which means the person:
- A. is normal with no sickle cell disease.
- B. is a sickle cell carrier.
- C. has sickle cell anemia.
- D. has thalassemia.
Correct answer: B
Rationale: The correct answer is that the person is a sickle cell carrier. In HbAS, 'Hb' stands for hemoglobin, 'A' indicates normal hemoglobin, and 'S' indicates the sickle cell trait. Individuals with HbAS are carriers of the sickle cell trait but do not have sickle cell disease. Choice A is incorrect because having the sickle cell trait means carrying the gene for sickle cell disease. Choice C is incorrect as sickle cell anemia is a different condition where individuals have two copies of the abnormal hemoglobin gene, resulting in the disease. Choice D is incorrect because thalassemia is a separate genetic disorder affecting the production of hemoglobin, not related to the sickle cell trait.
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