ATI RN
ATI Pathophysiology Exam 1
1. A 22-year-old woman began using oral contraceptives several months ago and has presented for an appointment to discuss recent worrisome changes in her health status. Which of the following changes in the woman's health may the nurse potentially attribute to the use of oral contraceptives?
- A. Fatigue
- B. Frequent high blood pressure readings
- C. Frequent headaches without aura
- D. Nausea and vomiting
Correct answer: A
Rationale: The correct answer is A: Fatigue. Oral contraceptives can sometimes cause fatigue as a side effect. Frequent high blood pressure readings and frequent headaches without aura are less likely to be directly related to the use of oral contraceptives. Nausea and vomiting are common side effects of oral contraceptives but are not the changes typically associated with liver function affecting hormone metabolism as in the case of hepatitis C infection.
2. Which patient is most likely to be diagnosed with complex regional pain syndrome II (CRPS II)?
- A. A patient who has experienced a spinal cord injury and reports severe, burning pain in his legs.
- B. A patient who reports severe pain in her hand following a surgery for carpal tunnel syndrome.
- C. A patient who develops pain in his foot following a fracture and immobilization with a cast.
- D. A patient who experiences chronic pain and swelling in his arm following a brachial plexus injury.
Correct answer: D
Rationale: Complex regional pain syndrome II (CRPS II) typically occurs after an injury to a peripheral nerve. In this case, a brachial plexus injury involves damage to the nerves that control muscles in the arm and hand, leading to chronic pain and swelling. Choices A, B, and C describe pain related to other conditions such as spinal cord injury, carpal tunnel surgery, and fracture immobilization, which are not typically associated with CRPS II.
3. A patient suffers from an autoimmune disorder. Which of the following represents a potential result of a viral infection in a patient with an autoimmune disorder?
- A. Lymphocytes recognize the host's tissue as foreign.
- B. Erythrocytes destroy the T cells of the host.
- C. The involution of the thymus gland increases the risk of infection.
- D. The differential decreases the sedimentation rate.
Correct answer: A
Rationale: In a patient with an autoimmune disorder, a viral infection can trigger an immune response where lymphocytes mistakenly recognize the host's tissue as foreign. This can lead to an exacerbation of the autoimmune condition. Choice B is incorrect because erythrocytes are not responsible for destroying T cells. Choice C is incorrect as thymus involution weakens the immune response, making the patient more susceptible to infections rather than increasing the infection risk. Choice D is unrelated to the potential effects of a viral infection in a patient with an autoimmune disorder.
4. A patient is prescribed tadalafil (Cialis) for erectile dysfunction. What specific contraindication should the nurse discuss with the patient?
- A. History of hypertension
- B. Use of nitrates
- C. Use of antihypertensive medications
- D. History of peptic ulcer disease
Correct answer: B
Rationale: The correct answer is B: 'Use of nitrates.' Tadalafil (Cialis) is contraindicated in patients taking nitrates due to the risk of severe hypotension. Nitrates and Cialis both cause vasodilation, which can lead to a dangerous drop in blood pressure when used together. Choices A, C, and D are incorrect because a history of hypertension, use of antihypertensive medications, and a history of peptic ulcer disease are not specific contraindications for tadalafil use.
5. What causes atherosclerotic plaques to form in the body?
- A. Poor dietary habits
- B. Administration of statin medication
- C. Interruption of blood flow to the brain
- D. Injury to the endothelium of the coronary arteries
Correct answer: D
Rationale: Atherosclerotic plaques form in the body due to injury to the endothelium of the coronary arteries. When the endothelium is damaged, it triggers an inflammatory response that leads to the accumulation of fats, cholesterol, and other substances, forming plaques. These plaques can narrow the arteries, reducing blood flow and potentially leading to serious complications like heart attacks or strokes. Poor dietary habits (choice A) can contribute to the development of atherosclerosis by promoting the buildup of plaque-forming substances in the blood, but the direct cause is the injury to the endothelium. Administration of statin medication (choice B) is actually a treatment for high cholesterol and aims to reduce the risk of plaque formation. Interruption of blood flow to the brain (choice C) is more related to conditions like ischemic stroke rather than the primary cause of atherosclerotic plaque formation.
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