ATI RN
ATI Pathophysiology Final Exam
1. A patient is prescribed raloxifene (Evista) for osteoporosis. What is the primary mechanism of action for this medication?
- A. Raloxifene decreases bone resorption, which helps to maintain or increase bone density.
- B. Raloxifene increases calcium absorption in the intestines, which helps build stronger bones.
- C. Raloxifene stimulates new bone formation by increasing osteoblast activity.
- D. Raloxifene decreases calcium excretion by the kidneys, helping to maintain bone density.
Correct answer: A
Rationale: Raloxifene decreases bone resorption, which helps to maintain or increase bone density, making it effective in the prevention and treatment of osteoporosis.
2. How often should a patient be administered a tetanus toxoid?
- A. Every year
- B. Every 10 years
- C. Every 2 years
- D. Every 5 years
Correct answer: B
Rationale: Tetanus toxoid should be administered every 10 years to ensure continued protection against tetanus infection. The correct answer is 'Every 10 years.' Choice A ('Every year') is incorrect as the frequency is too frequent. Choice C ('Every 2 years') is incorrect as it is too frequent for tetanus toxoid administration. Choice D ('Every 5 years') is incorrect as it does not align with the recommended interval for tetanus toxoid booster doses.
3. In clients with a cognitive impairment disorder, the phenomenon of increased confusion in the early evening hours is called:
- A. Aphasia.
- B. Agnosia.
- C. Sundowning.
- D. Confabulation.
Correct answer: C
Rationale: The correct answer is C: Sundowning. Sundowning is a phenomenon where individuals with cognitive impairment experience increased confusion and agitation in the late afternoon or early evening. This often occurs in conditions like dementia. Choice A, Aphasia, refers to a language disorder affecting a person's ability to communicate. Choice B, Agnosia, is the inability to recognize objects. Choice D, Confabulation, is the production of false memories without the intention to deceive, often seen in conditions like Korsakoff's syndrome.
4. A patient with breast cancer is prescribed tamoxifen (Nolvadex). What critical information should the nurse provide during patient education?
- A. Tamoxifen may increase the risk of venous thromboembolism, so patients should be educated about the signs and symptoms of blood clots.
- B. Tamoxifen may decrease the risk of osteoporosis, so adequate calcium intake is important.
- C. Tamoxifen may cause weight gain, so patients should monitor their diet.
- D. Tamoxifen may increase the risk of breast cancer, so regular mammograms are essential.
Correct answer: A
Rationale: When a patient is prescribed tamoxifen, a critical piece of information that the nurse should provide during patient education is that tamoxifen may increase the risk of venous thromboembolism. Therefore, patients should be educated about the signs and symptoms of blood clots and advised to seek immediate medical attention if they occur. Choice B is incorrect because tamoxifen does not decrease the risk of osteoporosis. Choice C is incorrect as weight gain is a possible side effect of tamoxifen, but it is not a critical piece of information compared to the risk of venous thromboembolism. Choice D is incorrect because tamoxifen is actually used to treat breast cancer, not increase its risk.
5. When educating a patient starting on oral contraceptives, what should the nurse include regarding the medication's effectiveness?
- A. Oral contraceptives are 100% effective when taken correctly.
- B. Oral contraceptives are effective immediately after starting.
- C. Oral contraceptives are less effective if taken with certain antibiotics.
- D. Oral contraceptives are less effective if taken with food.
Correct answer: C
Rationale: The correct answer is C. Oral contraceptives can be less effective when taken with certain antibiotics due to potential drug interactions. It is crucial for patients to be informed about this to consider additional contraceptive methods during antibiotic therapy. Choice A is incorrect because while oral contraceptives are highly effective, they are not 100% foolproof. Choice B is incorrect as it may give the impression that immediate protection is conferred, which is not the case. Choice D is incorrect as taking oral contraceptives with food does not significantly impact their effectiveness.
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