ATI RN
ATI Pathophysiology Exam
1. 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.
2. What is the expected outcome of administering a granulocyte colony-stimulating factor (G-CSF)?
- A. Reduction in red blood cell count
- B. Decreased number of infections
- C. Decreased fatigue and increased energy
- D. Increase in white blood cell count
Correct answer: B
Rationale: The correct answer is B: Decreased number of infections. Granulocyte colony-stimulating factor (G-CSF) is a medication used to stimulate the production of white blood cells, specifically granulocytes, in the body. By increasing the number of white blood cells, G-CSF helps in boosting the immune system, leading to a decreased number of infections. Choice A is incorrect as G-CSF does not cause a reduction in red blood cell count. Choice C is incorrect as G-CSF primarily affects white blood cells and is not directly related to fatigue or energy levels. Choice D is incorrect as G-CSF does increase the white blood cell count but does not usually elevate it to 20,000 mm3.
3. A patient with a history of breast cancer is being prescribed tamoxifen (Nolvadex). The nurse should educate the patient about what potential side effect of this medication?
- A. Increased risk of venous thromboembolism
- B. Increased risk of hot flashes
- C. Increased risk of cataracts
- D. Increased risk of bone fractures
Correct answer: A
Rationale: The correct answer is A: Increased risk of venous thromboembolism. Tamoxifen is known to increase the risk of venous thromboembolism, a serious side effect. Patients should be educated about the signs and symptoms of blood clots such as swelling, redness, warmth, or pain in the affected limb. Choices B, C, and D are incorrect because tamoxifen is not associated with an increased risk of hot flashes, cataracts, or bone fractures.
4. A 70-year-old man has enjoyed good overall health for all of his adult life, but he has been experiencing urinary frequency and dribbling that has culminated in a diagnosis of benign prostatic hypertrophy (BPH). As a result, the patient has been prescribed finasteride (Proscar). When teaching the patient about the potential adverse effects of the drug, the nurse should ensure that he knows about the possibility of
- A. sexual dysfunction.
- B. urethral burning.
- C. kidney stones.
- D. visual disturbances.
Correct answer: A
Rationale: The correct potential adverse effect of finasteride (Proscar) that the nurse should educate the patient about is sexual dysfunction. Finasteride is known to cause sexual side effects such as decreased libido, erectile dysfunction, and ejaculation disorders. Urethral burning, kidney stones, and visual disturbances are not commonly associated with finasteride use, making them incorrect choices for this scenario.
5. Why does multiple sclerosis manifest as asymmetrical and in different parts of the body?
- A. Autoreactive lymphocytes are causing diffuse patchy damage to the myelin sheath in the central nervous system.
- B. Acetylcholine receptors are destroyed by immunoglobulin G.
- C. Autoreactive T lymphocytes cause progressive loss of neurons in the substantia nigra.
- D. Cortical motor cells degenerate.
Correct answer: C
Rationale: Multiple sclerosis is characterized by the immune system mistakenly attacking the myelin sheath in the central nervous system. This results in the formation of lesions that can occur in different parts of the central nervous system, leading to varied symptoms depending on the location of the damage. Choice A is the correct answer because it accurately describes the pathophysiology of multiple sclerosis. Choices B, C, and D are incorrect because they describe mechanisms or locations that are not associated with the pathogenesis of multiple sclerosis.
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