ATI RN
ATI Pathophysiology Exam 1
1. 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.
2. A patient presents with a rash from poison ivy. The nurse knows that this is which type of hypersensitivity?
- A. Type I
- B. Type II
- C. Type III
- D. Type IV
Correct answer: D
Rationale: A rash from poison ivy is an example of a type IV hypersensitivity reaction. Type IV hypersensitivity reactions are delayed cell-mediated immune responses involving T cells. This type of reaction is characterized by a delayed onset, typically occurring 48-72 hours after exposure to the antigen. Choice A, Type I hypersensitivity reactions, are immediate hypersensitivity reactions mediated by IgE antibodies. Choices B and C, Type II and Type III hypersensitivity reactions, involve antibody-mediated cytotoxicity and immune complex deposition, respectively, which are not characteristic of poison ivy-induced rashes.
3. Which of the following nursing diagnoses would provide the most plausible indication for the use of epoetin alfa (Epogen) in a patient with renal failure?
- A. Risk for infection related to decreased erythropoiesis
- B. Activity intolerance related to decreased oxygen-carrying capacity
- C. Powerlessness related to sequelae of renal failure
- D. Ineffective breathing pattern related to inadequate erythropoietin synthesis
Correct answer: B
Rationale: The correct answer is B. In a patient with renal failure, the use of epoetin alfa (Epogen) is primarily aimed at addressing the decreased oxygen-carrying capacity due to impaired erythropoiesis. Epoetin alfa is a medication that stimulates red blood cell production, thereby improving the oxygen-carrying capacity of the blood. This would directly address the activity intolerance commonly seen in patients with renal failure. Choices A, C, and D are incorrect because they do not directly relate to the primary purpose of using epoetin alfa in this context. Risk for infection, powerlessness, and ineffective breathing pattern are important considerations in the care of a patient with renal failure, but they are not the primary indications for using epoetin alfa.
4. A patient is prescribed estradiol (Estrace) for hormone replacement therapy (HRT). What should the nurse monitor during this therapy?
- A. Blood glucose levels
- B. Liver function tests
- C. Kidney function tests
- D. Blood pressure
Correct answer: B
Rationale: During estradiol therapy, monitoring liver function tests is essential due to the potential for liver dysfunction. Estradiol can affect liver function, making it crucial to monitor enzyme levels. Choice A, blood glucose levels, is not directly impacted by estradiol therapy, making it an incorrect choice. Choice C, kidney function tests, is not typically affected by estradiol therapy, so it is not the priority for monitoring. Choice D, blood pressure, is also not the primary parameter to monitor during estradiol therapy unless there are pre-existing conditions that warrant such monitoring.
5. Which of the following wounds is most likely to heal by secondary intention?
- A. A finger laceration received while cutting onions
- B. A stage IV pressure ulcer that developed in a nursing home
- C. A needlestick injury received while administering parenteral medication
- D. An incision from an open appendectomy
Correct answer: B
Rationale: A stage IV pressure ulcer is a deep wound involving tissue loss that typically heals by secondary intention. This process involves the wound healing from the bottom up with granulation tissue and often results in significant scarring. Choice A, a finger laceration, would generally heal by primary intention due to its clean edges and minimal tissue loss. Choice C, a needlestick injury, is likely to be sutured and heal by primary intention since it is a small, clean wound. Choice D, an incision from an open appendectomy, is usually closed with sutures and heals by primary intention as well.
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