ATI RN
Pathophysiology Practice Exam
1. How will taking an oral contraceptive affect the physiologically of an insulin-dependent diabetic patient?
- A. Increase risk of hypoglycemia
- B. Increase heart rate
- C. Increase blood glucose
- D. Increase risk of metabolic alkalosis
Correct answer: C
Rationale: Taking an oral contraceptive can lead to an increase in blood glucose levels in insulin-dependent diabetic patients. This occurs due to the hormonal changes induced by the contraceptive, which can impact insulin sensitivity. Therefore, diabetic patients need to closely monitor their blood glucose levels when starting an oral contraceptive to prevent complications. The other choices are incorrect as oral contraceptives do not typically lead to an increase in heart rate, risk of hypoglycemia, or risk of metabolic alkalosis in this context.
2. What critical point should the nurse include in patient education regarding tamoxifen (Nolvadex) for a patient with breast cancer?
- A. Tamoxifen may increase the risk of venous thromboembolism.
- B. Tamoxifen may cause hot flashes and other menopausal symptoms.
- C. Tamoxifen may cause weight gain and fluid retention.
- D. Tamoxifen may decrease the risk of osteoporosis.
Correct answer: A
Rationale: The correct answer is A. Tamoxifen increases the risk of venous thromboembolism. Patients should be educated about the signs and symptoms of blood clots, such as swelling, redness, and pain in the legs. Choices B, C, and D are incorrect because tamoxifen is not associated with causing hot flashes, weight gain, fluid retention, or decreasing the risk of osteoporosis.
3. What clinical manifestations would the nurse expect to find in a client who is experiencing anaphylaxis?
- A. Dilated bronchioles, constriction of peripheral blood vessels, decreased capillary permeability
- B. Asthma, deep vein thrombosis, hepatic encephalopathy
- C. Narrowing of the bronchioles, dilation of the peripheral blood vessels, increased capillary permeability
- D. Left-sided heart failure, pulmonary embolism, urinary tract infection
Correct answer: C
Rationale: In anaphylaxis, the client would present with narrowing of the bronchioles, dilation of the peripheral blood vessels, and increased capillary permeability. These manifestations lead to symptoms such as difficulty breathing, low blood pressure, and swelling. Choices A, B, and D are incorrect because they do not describe the typical clinical manifestations of anaphylaxis.
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. Which of the following is found in clients with Parkinson’s disease?
- A. Mobility and functioning
- B. The liver and kidneys
- C. Too much dopamine in the brain
- D. Skeletal muscle flaccidity
Correct answer: C
Rationale: The correct answer is C: Too much dopamine in the brain. Parkinson's disease is characterized by a deficiency of dopamine in the brain, not an excess. This deficiency leads to the motor symptoms associated with the disease. Choices A, B, and D are incorrect. Mobility and functioning are affected in Parkinson's disease due to the lack of dopamine, not an excess. The liver and kidneys are not directly related to Parkinson's disease. Skeletal muscle flaccidity is not typically a primary symptom of Parkinson's disease, which is more characterized by rigidity and tremors.
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