ATI RN
ATI Pathophysiology
1. A patient is being treated for a severe fungal infection with amphotericin B. What is the expected length of treatment for this patient?
- A. 1 to 2 weeks
- B. 3 to 6 weeks
- C. 4 to 12 weeks
- D. 15 to 18 weeks
Correct answer: C
Rationale: The correct answer is C: '4 to 12 weeks.' Amphotericin B treatment duration for severe fungal infections typically ranges from 4 to 12 weeks. This extended period is necessary to ensure complete eradication of the fungal infection and prevent relapse. Choices A, B, and D provide durations that are either too short or too long for treating severe fungal infections effectively, making them incorrect.
2. When the maternal immune system becomes sensitized against antigens expressed by the fetus, what type of immune reaction occurs?
- A. Autoimmune
- B. Anaphylaxis
- C. Alloimmune
- D. Allergic
Correct answer: C
Rationale: When the maternal immune system becomes sensitized against antigens expressed by the fetus, an alloimmune reaction occurs. In this situation, the mother's immune system recognizes the fetus as foreign due to differences in antigens, leading to an immune response against the fetus. Choice A, 'Autoimmune,' is incorrect because it refers to the immune system mistakenly attacking the body's own cells and tissues. Choice B, 'Anaphylaxis,' is not the correct answer as it is a severe allergic reaction that can be life-threatening. Choice D, 'Allergic,' is also incorrect as it refers to an immune response triggered by allergens, not antigens expressed by the fetus.
3. When assessing a patient experiencing breakthrough bleeding while taking oral contraceptives, what should the nurse consider?
- A. The possibility of pregnancy
- B. The patient's adherence to the medication schedule
- C. The need for an increased dosage
- D. The effectiveness of the current oral contraceptive
Correct answer: B
Rationale: When a patient on oral contraceptives experiences breakthrough bleeding, it is crucial for the nurse to consider the patient's adherence to the medication schedule. Breakthrough bleeding is often a sign of missed doses or inconsistent use, which can decrease the effectiveness of the oral contraceptive. Considering the possibility of pregnancy (Choice A) is important but secondary to assessing adherence. The need for an increased dosage (Choice C) is not typically the first consideration for breakthrough bleeding. Evaluating the effectiveness of the current oral contraceptive (Choice D) is relevant but should come after assessing adherence to the medication schedule.
4. When educating a patient starting on oral contraceptives, what should the nurse include in the teaching plan regarding potential side effects?
- A. Weight gain, mood changes, and nausea
- B. Increased appetite, insomnia, and fatigue
- C. Breast tenderness, headaches, and dizziness
- D. Fatigue, hair loss, and joint pain
Correct answer: A
Rationale: The correct answer is A: Weight gain, mood changes, and nausea are common side effects of oral contraceptives. Weight gain may occur due to fluid retention or changes in metabolism. Mood changes can be caused by hormonal fluctuations. Nausea is a common side effect that usually improves after a few months of use. Choices B, C, and D are incorrect because they do not reflect common side effects associated with oral contraceptives. Increased appetite, insomnia, breast tenderness, headaches, dizziness, fatigue, hair loss, and joint pain are not typically reported side effects of oral contraceptives.
5. In a postmenopausal woman, what condition can be prevented by administering estradiol (Estraderm)?
- A. Endometriosis
- B. Amenorrhea
- C. Osteoporosis
- D. Uterine cancer
Correct answer: C
Rationale: The correct answer is C: Osteoporosis. Estradiol, a form of estrogen, is used to prevent osteoporosis in postmenopausal women by maintaining bone density. Choice A, Endometriosis, is incorrect as estradiol is not used to prevent or treat this condition. Choice B, Amenorrhea, is not prevented by estradiol but rather may result from hormonal changes. Choice D, Uterine cancer, is not directly prevented by estradiol; in fact, long-term unopposed estrogen use can increase the risk of uterine cancer.
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