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. A client with diabetes mellitus has just undergone a right, below-the-knee amputation following gangrene infection. A few days after the amputation, the client confides in the nurse that he still feels his right foot. Knowing the pathophysiologic principles behind this, the nurse can:
- A. administer a psychotropic medication to help the client cope with the sensation of his amputated leg.
- B. explain that many amputees have this sensation and that one theory surmises the end of a regenerating nerve becomes trapped in the scar tissue of the amputation site.
- C. call the physician and request an order for a psychological consult.
- D. educate the client that this area has an unusually abnormal increase in sensitivity to sensation but that it will go away with time.
Correct answer: B
Rationale: The correct answer is B. The sensation of feeling the amputated limb is known as phantom limb pain, which is common after amputation. One theory suggests that it occurs because the end of a regenerating nerve becomes trapped in the scar tissue at the amputation site. Administering psychotropic medication (choice A) is not the first-line treatment for phantom limb pain. Requesting a psychological consult (choice C) is premature without first addressing the known pathophysiological basis of phantom limb pain. Educating the client that the sensitivity will go away with time (choice D) is not entirely accurate as phantom limb pain can persist long-term.
3. When the body produces antibodies against its own tissue, the condition is called
- A. Alloimmunity
- B. Opsonization
- C. Autoimmunity
- D. Hypersensitivity
Correct answer: C
Rationale: The correct answer is C, autoimmunity. Autoimmunity refers to the immune system attacking the body's own tissues. Alloimmunity (choice A) is the immune response to tissues of another individual of the same species. Opsonization (choice B) is the process where pathogens are marked for destruction by immune cells. Hypersensitivity (choice D) refers to excessive or inappropriate immune responses.
4. A patient has suffered from several infections in the last 6 months and unexplained impaired wound healing. What assessment should the nurse prioritize?
- A. Assess for pain.
- B. Assess for nutritional deficiencies.
- C. Assess genetic tendency for infection.
- D. Assess for edema and decreased hemoglobin.
Correct answer: B
Rationale: In this scenario, the patient's history of multiple infections and impaired wound healing indicates a potential issue with their immune system and overall health. Therefore, the nurse should prioritize assessing for nutritional deficiencies. Proper nutrition is essential for a healthy immune response and wound healing. Assessing for pain (choice A) may be important but addressing the root cause of the recurrent infections and impaired wound healing is crucial. Genetic tendency for infection (choice C) would be a less immediate concern compared to assessing for nutritional deficiencies. Edema and decreased hemoglobin (choice D) are not the most relevant assessments based on the patient's symptoms.
5. A patient with breast cancer is prescribed tamoxifen (Nolvadex). What important information should the nurse provide during patient education?
- A. Tamoxifen may increase the risk of venous thromboembolism, so patients should be educated about the signs and symptoms of blood clots.
- B. Tamoxifen may cause weight gain, so patients should monitor their diet.
- C. Tamoxifen may decrease the risk of osteoporosis, so patients should ensure adequate calcium intake.
- D. Tamoxifen may increase the risk of breast cancer, so regular mammograms are essential.
Correct answer: A
Rationale: The correct answer is A. Tamoxifen increases the risk of venous thromboembolism, a serious side effect, so patients should be educated about the signs and symptoms of blood clots. This information is crucial as early recognition and prompt treatment of blood clots can prevent complications. Choices B, C, and D are incorrect because tamoxifen is not associated with causing weight gain, decreasing the risk of osteoporosis, or increasing the risk of breast cancer. Providing accurate information is essential for patient safety and understanding.
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