ATI RN
Pathophysiology Exam 1 Quizlet
1. A patient with a history of breast cancer is being prescribed tamoxifen (Nolvadex). What should the nurse include in the patient education?
- A. Tamoxifen may increase the risk of venous thromboembolism.
- B. Tamoxifen may decrease the risk of osteoporosis.
- C. Tamoxifen may cause hot flashes and other menopausal symptoms.
- D. Tamoxifen may cause weight gain and fluid retention.
Correct answer: A
Rationale: The correct answer is A. Tamoxifen increases the risk of venous thromboembolism. Patients should be educated about signs and symptoms of blood clots, such as swelling, pain, or redness in the legs. Choices B, C, and D are incorrect because tamoxifen is not associated with decreasing the risk of osteoporosis, causing hot flashes and menopausal symptoms, or causing weight gain and fluid retention.
2. What is the major effect of filgrastim (Neupogen) in a patient with chronic renal failure?
- A. Decreases neutropenia related to chemotherapy
- B. Decreases white blood cells related to infection
- C. Decreases growth of blood vessels due to ischemia
- D. Decreases platelet count related to bleeding
Correct answer: A
Rationale: The major effect of filgrastim (Neupogen) is to stimulate the production of neutrophils, thereby decreasing neutropenia in patients undergoing chemotherapy. This medication helps the bone marrow produce more white blood cells, specifically neutrophils, to reduce the risk of infections associated with low neutrophil counts. Choices B, C, and D are incorrect because filgrastim does not decrease white blood cells related to infection, growth of blood vessels, or platelet count related to bleeding.
3. A patient with breast cancer is prescribed tamoxifen (Nolvadex). What should the nurse emphasize during patient education?
- A. Tamoxifen may increase the risk of venous thromboembolism, so patients should be aware of the signs and symptoms of blood clots.
- B. Tamoxifen may cause weight gain, so patients should monitor their diet.
- C. Tamoxifen may cause hot flashes and other menopausal symptoms.
- D. Tamoxifen may decrease the risk of osteoporosis, so patients should ensure adequate calcium intake.
Correct answer: A
Rationale: The correct answer is A. Tamoxifen increases the risk of venous thromboembolism, a serious side effect. Therefore, patients should be educated about the signs and symptoms of blood clots, such as swelling, pain, and redness in the legs, and advised to seek immediate medical attention if they occur. Choice B is incorrect because weight gain is not a significant side effect of tamoxifen. Choice C is incorrect because hot flashes and menopausal symptoms are common side effects of tamoxifen but are not as critical to address as venous thromboembolism. Choice D is incorrect because tamoxifen does not decrease the risk of osteoporosis; in fact, it may increase the risk of bone loss in premenopausal women.
4. A 57-year-old male presents to his primary care provider with a red face, hands, feet, ears, headache, and drowsiness. A blood smear reveals an increased number of erythrocytes, indicating:
- A. Leukemia
- B. Sideroblastic anemia
- C. Hemosiderosis
- D. Polycythemia vera
Correct answer: D
Rationale: In this case, the symptoms of a red face, hands, feet, ears, headache, and drowsiness along with an increased number of erythrocytes in the blood smear are indicative of polycythemia vera. This condition is characterized by the overproduction of red blood cells, leading to symptoms related to increased blood volume and viscosity. Leukemia (Choice A) is a cancer of the blood and bone marrow, but the presentation described here is more suggestive of polycythemia vera. Sideroblastic anemia (Choice B) is characterized by abnormal iron deposits in erythroblasts, not an increased number of erythrocytes. Hemosiderosis (Choice C) refers to abnormal accumulation of iron in the body, not an increase in red blood cells as seen in polycythemia vera.
5. A patient is starting on atorvastatin (Lipitor) for hyperlipidemia. What critical instruction should the nurse provide?
- A. Take the medication at night to reduce the risk of muscle pain and other side effects.
- B. Avoid consuming grapefruit juice while taking this medication.
- C. Take the medication in the morning with breakfast to improve absorption.
- D. Take the medication with a high-fat meal to increase its effectiveness.
Correct answer: A
Rationale: The correct answer is to take the medication at night to reduce the risk of muscle pain and other side effects. Atorvastatin, like other statins, is more effective when taken in the evening as the body produces more cholesterol at night. Taking it with a high-fat meal (choice D) is not recommended as it may reduce the drug's absorption. Grapefruit juice (choice B) should be avoided with atorvastatin as it can increase the risk of side effects. Taking the medication in the morning with breakfast (choice C) is not as effective as taking it at night.
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