ATI RN
ATI Pathophysiology Quizlet
1. A patient is starting on a statin medication 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. Take the medication in the morning with breakfast to improve absorption.
- C. Avoid alcohol consumption while taking this medication to reduce the risk of liver damage.
- D. Take the medication with a high-fat meal to increase its effectiveness.
Correct answer: A
Rationale: The correct answer is A. Statins like atorvastatin should be taken at night to reduce the risk of muscle pain and other side effects. Taking the medication with a high-fat meal (choice D) is not recommended as it can decrease the effectiveness of the medication. Alcohol consumption (choice C) should be moderated but does not need to be completely avoided unless contraindicated. Taking the medication with breakfast (choice B) may not be as effective as taking it at night due to the circadian rhythm of cholesterol synthesis.
2. What is a common cause of a pulmonary embolism?
- A. An autoimmune disorder
- B. A venous blood clot from the lower extremity
- C. An increase in intracranial pressure
- D. Hypotension
Correct answer: B
Rationale: A pulmonary embolism is commonly caused by a blood clot that originates in the venous system of the lower extremity and travels to the lungs, blocking blood flow. This clot is known as a venous thromboembolism. An autoimmune disorder (Choice A) is not typically associated with pulmonary embolism. Intracranial pressure (Choice C) refers to pressure inside the skull and is unrelated to pulmonary embolism. Hypotension (Choice D) is low blood pressure and is not a common cause of pulmonary embolism.
3. A woman is complaining that she feels like the room is spinning even though she is not moving. Which of the following is characteristic of benign positional vertigo?
- A. It usually occurs with a headache.
- B. Pupillary changes are common.
- C. It is usually triggered when the patient bends forward.
- D. Nystagmus continues even when the eyes fixate on an object.
Correct answer: C
Rationale: The correct answer is C: 'It is usually triggered when the patient bends forward.' Benign positional vertigo is often triggered by changes in head position, such as bending forward. Choices A, B, and D are incorrect. A is incorrect because benign positional vertigo is not typically associated with headaches. B is incorrect because pupillary changes are not a common feature of benign positional vertigo. D is incorrect because nystagmus in benign positional vertigo usually stops when the eyes fixate on an object.
4. Which of the following is a characteristic of osteosarcoma?
- A. Slow-growing tumor that begins in the bone marrow
- B. Solitary tumor that most often affects the metaphyseal region of the femur or tibia
- C. An aggressive tumor most often found in the bone marrow of long bones
- D. A tumor that infiltrates the trabeculae in spongy bone and implants in surrounding tissue
Correct answer: C
Rationale: Osteosarcoma is an aggressive bone tumor that most commonly arises in the bone marrow of long bones, such as the femur or tibia. Choice A is incorrect as osteosarcoma is not a slow-growing tumor but rather a fast-growing one. Choice B is incorrect as osteosarcoma is not typically solitary but can involve multiple lesions. Choice D is incorrect as osteosarcoma primarily affects the medullary (marrow) cavity of bones, rather than infiltrating the trabeculae in spongy bone and surrounding tissue.
5. When starting on oral contraceptives, what should the nurse emphasize about the potential interactions with other medications?
- A. Oral contraceptives can be less effective when taken with certain antibiotics.
- B. Oral contraceptives are less effective when taken with food.
- C. Oral contraceptives are effective immediately after starting.
- D. Oral contraceptives have no interactions with other medications.
Correct answer: A
Rationale: The correct answer is A. Oral contraceptives can be less effective when taken with certain antibiotics, so patients should be informed about the potential need for additional contraception. Choice B is incorrect because taking oral contraceptives with food does not affect their effectiveness. Choice C is incorrect because oral contraceptives may take some time to become fully effective. Choice D is incorrect because oral contraceptives can interact with other medications, especially certain antibiotics, affecting their efficacy.
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