ATI RN
ATI Pathophysiology Exam 1
1. A 54-year-old man presents with a temperature of 38.8°C (101.8°F), a racing heart, fatigue, and an upset stomach after spending an afternoon building a deck on a very hot, humid day. The physician assessing the man is performing a differential diagnosis as part of her assessment. Which finding would suggest fever rather than hyperthermia as a cause of the elevation in the man's temperature?
- A. Absence of sweating
- B. Shivering
- C. Lack of thirst
- D. Increased heart rate
Correct answer: B
Rationale: Shivering is a physiological response to fever, as the body attempts to generate heat to increase the internal temperature. Hyperthermia, on the other hand, does not involve shivering. Absence of sweating (choice A) is more indicative of hyperthermia, as the body struggles to cool down without sweating. Lack of thirst (choice C) can be seen in both fever and hyperthermia. Increased heart rate (choice D) can occur in both fever and hyperthermia due to the body's attempt to regulate temperature.
2. A patient arrives at her follow-up appointment 1 month post-hysterectomy and complains to the nurse that her scars do not seem to be healing properly. Upon inspection, the nurse notices that the scars are raised but still within the boundaries of the original incisions. The nurse tells the patient this kind of dysfunctional wound healing is called:
- A. Hypertrophic scarring
- B. Dehiscence
- C. Contracture
- D. A keloid
Correct answer: A
Rationale: Hypertrophic scarring occurs when a scar is raised but remains within the boundaries of the original wound, unlike keloids, which extend beyond the wound edges. Dehiscence refers to the separation of wound edges, while contracture involves the tightening or constriction of a scar, leading to limited mobility.
3. A patient with a history of cardiovascular disease is prescribed hormone replacement therapy (HRT). What should the nurse emphasize regarding the long-term risks associated with HRT?
- A. HRT is associated with an increased risk of cardiovascular events, including heart attack and stroke.
- B. HRT may decrease the risk of osteoporosis.
- C. HRT may improve mood and energy levels.
- D. HRT may increase the risk of breast cancer.
Correct answer: A
Rationale: HRT is associated with an increased risk of cardiovascular events, including heart attack and stroke, particularly in patients with a history of cardiovascular disease.
4. What should the nurse include in patient education regarding the effectiveness of oral contraceptives?
- A. Oral contraceptives are highly effective when taken correctly but not 100% foolproof.
- B. Oral contraceptives may take some time to reach full effectiveness after starting.
- C. Oral contraceptives can be less effective if taken with certain antibiotics.
- D. Taking oral contraceptives with food does not significantly affect their efficacy.
Correct answer: C
Rationale: The correct answer is C. Oral contraceptives can be less effective when taken with certain antibiotics due to potential drug interactions that may reduce contraceptive efficacy. It is crucial for patients to be aware of this to consider additional contraceptive measures when prescribed antibiotics. Choice A is incorrect because while oral contraceptives are highly effective when taken correctly, they are not 100% foolproof. Choice B is incorrect as oral contraceptives may take some time to reach their full effectiveness after starting. Choice D is also incorrect as taking oral contraceptives with food does not significantly affect their efficacy.
5. A patient's current medical condition is suggestive of impaired erythropoiesis. Which of the following laboratory studies would be most clinically relevant in diagnosing this health problem?
- A. White blood cell count with differential
- B. RBC, hemoglobin, and hematocrit
- C. INR and aPTT
- D. d-dimer and C-reactive protein
Correct answer: B
Rationale: In this scenario, where impaired erythropoiesis is suspected, the most clinically relevant laboratory studies would focus on red blood cell parameters. Therefore, assessing RBC count, hemoglobin levels, and hematocrit values would provide direct insights into erythropoiesis. Choices A, C, and D are not directly related to erythropoiesis assessment. White blood cell count with a differential is more indicative of immune response and infection. INR and aPTT are coagulation studies, while d-dimer and C-reactive protein levels are more associated with inflammation and thrombotic events.
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