ATI RN
ATI Pathophysiology Exam 1
1. As you are walking in the park, a huge black Labrador runs up to you and places his paws on your shoulders. Immediately your heart starts racing, you feel palpitations, anxiety, and your hands become a little shaky. The nurse knows that this response is primarily caused by:
- A. cerebral cortex.
- B. somatic nervous system.
- C. limbic system.
- D. autonomic nervous system.
Correct answer: D
Rationale: The autonomic nervous system controls involuntary bodily functions like heart rate, respiration, and sweating. In the given scenario, the 'fight or flight' response is activated, leading to increased heart rate, palpitations, anxiety, and shaky hands. The cerebral cortex is involved in conscious thought processes and decision-making, not the immediate physiological response observed here. The somatic nervous system regulates voluntary movements, while the limbic system is responsible for emotions and memory, but the autonomic nervous system is primarily responsible for the physiological responses seen in this situation.
2. A male patient with benign prostatic hyperplasia (BPH) is being treated with tamsulosin (Flomax). What should the nurse include in the teaching plan for this patient?
- A. Avoid lying down after taking the medication.
- B. Take the medication with meals.
- C. Report any side effects such as dizziness or fainting.
- D. Take the medication at bedtime.
Correct answer: C
Rationale: The correct answer is C: 'Report any side effects such as dizziness or fainting.' Patients taking tamsulosin should be advised to report any side effects, such as dizziness or fainting, which can occur due to orthostatic hypotension. Choices A, B, and D are incorrect because avoiding lying down after taking the medication, taking it with meals, or at bedtime are not specific teaching points related to the potential side effects of tamsulosin.
3. A 22-year-old woman began using oral contraceptives several months ago and has presented for an appointment to discuss recent worrisome changes in her health status. Which of the following changes in the woman's health may the nurse potentially attribute to the use of oral contraceptives?
- A. Fatigue
- B. Frequent high blood pressure readings
- C. Frequent headaches without aura
- D. Nausea and vomiting
Correct answer: A
Rationale: The correct answer is A: Fatigue. Oral contraceptives can sometimes cause fatigue as a side effect. Frequent high blood pressure readings and frequent headaches without aura are less likely to be directly related to the use of oral contraceptives. Nausea and vomiting are common side effects of oral contraceptives but are not the changes typically associated with liver function affecting hormone metabolism as in the case of hepatitis C infection.
4. A patient is prescribed medroxyprogesterone acetate (Provera) for the treatment of endometriosis. What should the nurse teach the patient about the use of this medication?
- A. Medroxyprogesterone should be taken with food to prevent nausea.
- B. Medroxyprogesterone can be taken intermittently when symptoms worsen.
- C. Medroxyprogesterone should be taken at the same time each day to maintain consistent hormone levels.
- D. Medroxyprogesterone should be discontinued if side effects occur.
Correct answer: C
Rationale: The correct answer is C. Medroxyprogesterone should be taken at the same time each day to maintain consistent hormone levels and effectiveness. Taking it at different times can lead to hormonal fluctuations and reduced medication efficacy. Choice A is incorrect because medroxyprogesterone does not need to be taken with food to prevent nausea. Choice B is incorrect as medroxyprogesterone is typically taken continuously rather than intermittently. Choice D is incorrect because side effects should be reported to the healthcare provider for further evaluation and management, not automatically leading to discontinuation of the medication.
5. A patient with a history of hypertension presents with a severe headache, confusion, and visual disturbances. His blood pressure is 220/120 mm Hg. Which of the following is the most likely diagnosis?
- A. Migraine
- B. Cluster headache
- C. Hypertensive emergency
- D. Tension headache
Correct answer: C
Rationale: A patient with a history of hypertension presenting with a severe headache, confusion, and visual disturbances, along with a blood pressure of 220/120 mm Hg, likely has a hypertensive emergency. In this situation, the severely elevated blood pressure can lead to end-organ damage, causing symptoms such as headache and confusion. Migraine and tension headaches are not associated with such high blood pressure levels. Cluster headaches typically do not present with visual disturbances and confusion in the setting of severe hypertension.
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