ATI RN
WGU Pathophysiology Final Exam
1. An older adult patient comes to the clinic complaining of not being able to do what he used to be able to. You know that normal changes associated with aging include:
- A. Improved blood flow
- B. Slowed metabolic rate
- C. Increased brain weight
- D. Improved nerve fiber conduction
Correct answer: B
Rationale: Normal changes associated with aging include a slowed metabolic rate and decreased brain weight. Option A, 'Improved blood flow,' is incorrect as aging is generally associated with reduced vascular health rather than improved blood flow. Option D, 'Improved nerve fiber conduction,' is incorrect as aging typically leads to a decline in nerve function rather than improvement.
2. What are the characteristics of the inflammatory process?
- A. Loss of function, coolness
- B. Pain, redness
- C. Heat, pallor
- D. Swelling, pallor
Correct answer: B
Rationale: The correct answer is B: Pain, redness. Inflammation is characterized by pain and redness as part of the body's response to tissue injury. Choice A, loss of function and coolness, are not primary characteristics of inflammation. Choice C, heat and pallor, may be present in some cases but are not as consistently associated with inflammation as pain and redness. Choice D, swelling and pallor, includes swelling which is common in inflammation but pallor is not a typical characteristic.
3. Which of the following describes the etiology of a cerebrovascular accident (CVA)?
- A. A blow to the head from a hard object
- B. Lack of blood flow to part of the brain
- C. Excessive exercise, such as running
- D. A ruptured artery in the heart
Correct answer: B
Rationale: The correct answer is B. A cerebrovascular accident (CVA), or stroke, is often caused by a lack of blood flow to part of the brain. This leads to damage in the brain tissue due to the deprived oxygen and nutrients. Choices A, C, and D are incorrect. A blow to the head from a hard object can cause a traumatic brain injury but is not the etiology of a CVA. Excessive exercise like running does not typically lead to a stroke. A ruptured artery in the heart may result in a heart attack, not a cerebrovascular accident.
4. A 30-year-old man has a history of heart transplant and is receiving long-term steroids to prevent rejection. The patient is due for routine vaccines. Attenuated vaccines are contraindicated in this patient because the antigen is:
- A. live and can cause infection.
- B. mutated and infectious.
- C. inactive but still infectious
- D. pathogenic
Correct answer: A
Rationale: The correct answer is A: live and can cause infection. Patients who are immunocompromised, like those receiving long-term steroids after an organ transplant, should not receive live vaccines because the live attenuated organisms in these vaccines can cause infections in individuals with weakened immune systems. Choice B is incorrect because attenuated vaccines are live but weakened, not mutated. Choice C is incorrect because while inactive, attenuated vaccines are not infectious. Choice D is incorrect because attenuated vaccines are not pathogenic; they are attenuated (weakened) forms of the pathogen.
5. What should the nurse teach the boy about anabolic steroid abuse?
- A. The ability of anabolic steroids to build muscle is greatly exaggerated in the media.
- B. Anabolic steroids are universally dangerous but are especially harmful to adolescents.
- C. The muscle mass resulting from steroid use will atrophy unless doses are continually increased.
- D. Anabolic steroids will reduce the boy's ability to perform weight-bearing exercise later in life.
Correct answer: B
Rationale: The correct answer is B because anabolic steroids are indeed universally dangerous, but they pose greater risks to adolescents due to their impact on growth and development. Choice A is incorrect because anabolic steroids do have the potential to build muscle mass, though not to the extent often portrayed in the media. Choice C is incorrect as muscle mass gained from steroid use may persist for a period even after discontinuation. Choice D is incorrect as anabolic steroids can enhance muscle performance initially, though long-term use can have adverse effects on health and not specifically on the ability to perform weight-bearing exercises.
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