ATI RN
WGU Pathophysiology Final Exam
1. 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.
2. A 45-year-old diabetic male is experiencing erectile dysfunction. If his erectile dysfunction is caused by the nervous system, then the nurse can educate the client that the venous blood supply to the penis is controlled by:
- A. Sympathetic nerves.
- B. Parasympathetic nerves.
- C. Somatic nerves.
- D. Spinal reflexes.
Correct answer: B
Rationale: Erectile function is primarily controlled by the parasympathetic nervous system, which facilitates the dilation of blood vessels in the penis. The parasympathetic nerves are responsible for vasodilation in the penis, allowing blood to enter and creating an erection. Sympathetic nerves, on the other hand, are responsible for ejaculation by causing contraction of the muscles around the vas deferens. Somatic nerves are involved in sensation and movement, not specifically in controlling blood supply to the penis. Spinal reflexes can play a role in the erectile process, but they are not directly responsible for controlling the venous blood supply.
3. When starting on oral contraceptives, what key point should the nurse emphasize about taking the medication consistently?
- A. Oral contraceptives should be taken at the same time each day to maintain stable hormone levels and prevent pregnancy.
- B. Oral contraceptives can be taken at any time of day, as long as the schedule is consistent.
- C. Oral contraceptives should be taken in the morning to avoid nighttime side effects.
- D. Oral contraceptives are effective immediately upon starting, regardless of timing.
Correct answer: A
Rationale: When starting on oral contraceptives, it is crucial to take them at the same time each day to maintain stable hormone levels and ensure their effectiveness in preventing pregnancy. Choice B is incorrect because consistency in timing is essential to maximize contraceptive efficacy. Choice C is incorrect as there is no evidence that taking oral contraceptives in the morning helps avoid nighttime side effects. Choice D is incorrect because oral contraceptives do not provide immediate effectiveness and require consistent use to prevent pregnancy.
4. Which of the following imbalances is found in clients with syndrome of inappropriate antidiuretic hormone (SIADH)?
- A. Decreased insulin production
- B. Decreased antidiuretic hormone (ADH) production
- C. Increased secretion of antidiuretic hormone (ADH)
- D. Increased production of insulin
Correct answer: C
Rationale: The correct answer is C: Increased secretion of antidiuretic hormone (ADH). Syndrome of inappropriate antidiuretic hormone (SIADH) is characterized by the excessive release of ADH, which leads to water retention and dilution of blood sodium levels. Choices A, B, and D are incorrect because SIADH is not associated with decreased insulin production, decreased ADH production, or increased production of insulin.
5. Canola oil produced from genetically modified canola plants altered to be herbicide-resistant is an example of a:
- A. pesticide-free food.
- B. saturated fat food.
- C. genetically modified food.
- D. product that is pure.
Correct answer: C
Rationale: The correct answer is 'genetically modified food.' Canola oil derived from genetically modified canola plants falls into this category because the plant's genome has been altered to exhibit herbicide resistance. This genetic modification makes it a genetically modified food. Choice A, 'pesticide-free food,' is incorrect as the genetic modification is to resist herbicides, not pesticides. Choice B, 'saturated fat food,' is incorrect as it does not accurately describe the genetic modification of the canola plants. Choice D, 'product that is pure,' is too vague and does not address the genetic modification aspect of the canola plants.
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