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. What laboratory tests should the nurse monitor regularly when a male patient is receiving androgen therapy?
- A. Monitor liver function tests regularly.
- B. Monitor renal function tests regularly.
- C. Monitor blood glucose levels regularly.
- D. Monitor complete blood count (CBC) regularly.
Correct answer: A
Rationale: The correct answer is to monitor liver function tests regularly when a male patient is receiving androgen therapy. Androgen therapy can impact liver function, making it crucial to monitor liver function tests to assess any potential adverse effects on the liver. Renal function tests (choice B) are not typically affected by androgen therapy and do not need specific monitoring for this treatment. Blood glucose levels (choice C) are more relevant in conditions like diabetes or with medications affecting blood sugar, not typically in androgen therapy. Complete blood count (CBC) (choice D) is not directly impacted by androgen therapy and is not a priority for monitoring in this context.
3. A patient with osteoporosis is prescribed raloxifene (Evista). What is the primary therapeutic action of this medication?
- A. It decreases bone resorption and increases bone density.
- B. It stimulates the formation of new bone.
- C. It increases calcium absorption in the intestines.
- D. It increases the excretion of calcium through the kidneys.
Correct answer: A
Rationale: The correct answer is A. Raloxifene works by decreasing bone resorption and increasing bone density. This helps in preventing further bone loss and reducing the risk of fractures in patients with osteoporosis. Choice B is incorrect because raloxifene does not stimulate the formation of new bone, but rather helps to maintain existing bone mass. Choice C is incorrect as raloxifene does not directly increase calcium absorption in the intestines. Choice D is also incorrect as raloxifene does not increase the excretion of calcium through the kidneys.
4. Which of the following is a cause of edema?
- A. Decreased plasma proteins
- B. Hypotension
- C. Dehydration
- D. Polyuria
Correct answer: A
Rationale: The correct answer is A: Decreased plasma proteins. Edema can be caused by decreased plasma proteins, which reduce the osmotic pressure that keeps fluid in the blood vessels. Hypotension (choice B) is low blood pressure and is not a direct cause of edema. Dehydration (choice C) involves a lack of body fluid, but it is not a direct cause of edema. Polyuria (choice D) is excessive urination and not a direct cause of edema.
5. Which individual is likely to have the best prognosis for recovery from his or her insult to the peripheral nervous system? An adult:
- A. client who developed rhabdomyolysis and ischemic injury after a tourniquet application.
- B. who suffered a bone-depth laceration to the shoulder during a knife attack.
- C. who had his forearm partially crushed by gears during an industrial accident.
- D. client who had nerves transected during surgery to remove a tumor from the mandible.
Correct answer: C
Rationale: The correct answer is C. Crushing-type injuries to the peripheral nervous system generally have a better prognosis compared to nerve transections or lacerations. In the scenario provided, the individual who had his forearm partially crushed by gears during an industrial accident is likely to have a better chance of recovery compared to nerve transection (choice D) or laceration (choice B). Rhabdomyolysis and ischemic injury after tourniquet application (choice A) are not directly related to peripheral nerve injury and do not indicate a better prognosis for recovery.
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