ATI RN
Pathophysiology Exam 1 Quizlet
1. What aspect of hormonal contraceptives places a woman at the greatest risk for the development of blood clots?
- A. Hormonal contraceptives increase serum triglyceride and cholesterol levels.
- B. Hormonal contraceptives increase platelet levels.
- C. Hormonal contraceptives increase blood levels of clotting factors.
- D. Hormonal contraceptives cause injury to blood vessel linings.
Correct answer: C
Rationale: The correct answer is C. Hormonal contraceptives increase blood levels of clotting factors, particularly factors II, VII, IX, and X. This elevation in clotting factors can predispose individuals to thromboembolic events, including blood clots. Choices A, B, and D are incorrect because hormonal contraceptives do not have a significant effect on serum triglycerides and cholesterol, platelet levels, or causing direct injury to blood vessel linings as the primary mechanism for clot formation.
2. Which statement best conveys an aspect of the role of cerebrospinal fluid (CSF)?
- A. CSF provides immune protection to the brain and spinal cord by serving as a physical barrier.
- B. CSF cushions the brain and spinal cord, protecting them from injury.
- C. CSF plays a limited role in the exchange of nutrients and waste products between the blood and brain.
- D. CSF functions primarily as a medium for the transmission of nerve impulses.
Correct answer: B
Rationale: The correct answer is B. Cerebrospinal fluid primarily cushions the brain and spinal cord, protecting them from injury. Choice A is incorrect because while CSF contributes to the brain's immune environment, its main role is not providing immune protection as a physical barrier. Choice C is incorrect because CSF has a significant role in the exchange of nutrients and waste products, rather than a limited one. Choice D is incorrect as CSF is not primarily a medium for nerve impulse transmission, but rather serves as a protective and supportive fluid.
3. A group of nursing students and their professor are engaged in a service learning project and will be caring for patients in Haiti. What medication should be administered to prevent the development of malaria?
- A. Metronidazole (Flagyl)
- B. Oprelvekin (Neumega)
- C. Chloroquine phosphate (Aralen)
- D. Chloroprocaine hydrochloride (Nesacaine)
Correct answer: C
Rationale: The correct answer is Chloroquine phosphate (Aralen). Chloroquine is a medication used to prevent and treat malaria. It works by killing the malaria parasite in the red blood cells. Metronidazole (Flagyl) is an antibiotic used to treat various bacterial and parasitic infections, not malaria. Oprelvekin (Neumega) is a medication used to stimulate platelet production. Chloroprocaine hydrochloride (Nesacaine) is a local anesthetic used for epidural anesthesia. Therefore, Chloroquine phosphate is the appropriate medication for preventing malaria in this scenario.
4. DiGeorge syndrome is a primary immune deficiency caused by:
- A. Failure of B cells to mature
- B. Congenital lack of thymic tissue
- C. Failure of formed elements of blood to develop
- D. Selective IgG deficiency
Correct answer: B
Rationale: DiGeorge syndrome is caused by a congenital lack of thymic tissue, which plays a crucial role in T cell development and maturation, leading to immune deficiency. Choice A is incorrect because DiGeorge syndrome primarily affects T cells, not B cells. Choice C is incorrect as it is too broad and not specific to the thymus. Choice D is incorrect as selective IgG deficiency is a different condition unrelated to DiGeorge syndrome.
5. When starting on oral contraceptives, what should the nurse include in the education regarding the timing of the medication?
- 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 educating a patient starting on oral contraceptives, it is essential to stress the importance of taking the medication at the same time each day. This ensures stable hormone levels, improving the effectiveness of the contraceptives in preventing pregnancy. Choice B is incorrect because consistency in timing is crucial for maintaining hormone levels. Choice C is incorrect as there is no specific requirement to take oral contraceptives in the morning to avoid side effects. Choice D is incorrect as oral contraceptives may take some time to become fully effective, and consistent timing is important for their efficacy.
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