ATI RN
Final Exam Pathophysiology
1. How often should a patient be administered a tetanus toxoid?
- A. Every year
- B. Every 10 years
- C. Every 2 years
- D. Every 5 years
Correct answer: B
Rationale: Tetanus toxoid should be administered every 10 years to ensure continued protection against tetanus infection. The correct answer is 'Every 10 years.' Choice A ('Every year') is incorrect as the frequency is too frequent. Choice C ('Every 2 years') is incorrect as it is too frequent for tetanus toxoid administration. Choice D ('Every 5 years') is incorrect as it does not align with the recommended interval for tetanus toxoid booster doses.
2. If the client's dorsal columns are not functioning, the nurse will observe which response during neuro testing, where the nurse asks the client to close his eyes and then proceeds to touch corresponding parts of the body on each side simultaneously with two sharp points?
- A. The client will not be able to distinguish between the two points.
- B. The client will feel only one point of contact.
- C. The client will accurately identify both points.
- D. The client will report no sensation in the touched areas.
Correct answer: A
Rationale: If the client's dorsal columns are not functioning, the ability to distinguish between two closely spaced points is impaired. This results in the client not being able to differentiate between the two points when touched simultaneously. Choice B is incorrect because the client feeling only one point suggests an intact dorsal column function. Choice C is incorrect as accurately identifying both points indicates normal discrimination ability. Choice D is incorrect as reporting no sensation does not correspond to the specific impairment related to dorsal column dysfunction.
3. A home care nurse visits a patient who is bed-bound and lives in a 12-story high-rise apartment complex. Her daughter states that she has small red skin lesions over her body and she has been itching. What parasite is most likely responsible for this patient's skin lesions?
- A. Sarcoptes scabiei
- B. Pediculus humanus corporis
- C. Pediculus humanus pubis
- D. Toxoplasma gondii
Correct answer: A
Rationale: The correct answer is Sarcoptes scabiei. Sarcoptes scabiei is a parasitic mite that causes scabies, characterized by small red skin lesions and intense itching. Pediculosis corporis (choice B) refers to body lice, which do not cause the specific symptoms described. Pediculosis pubis (choice C) is caused by pubic lice and presents differently from the symptoms described. Toxoplasma gondii (choice D) is a parasite that causes toxoplasmosis, but it does not typically manifest with small red skin lesions and itching.
4. Which of the following are characteristic, localized cardinal signs of acute inflammation? (Select ONE that does not apply.)
- A. Redness
- B. Fatigue
- C. Swelling
- D. Warmth
Correct answer: B
Rationale: The correct answers are A, C, and D. Redness, swelling, and warmth are classic signs of acute inflammation. Redness occurs due to increased blood flow, swelling is caused by leakage of fluid into tissues, and warmth is due to the vasodilation and increased blood flow in the affected area. Fatigue is not a cardinal sign of acute inflammation and is not directly associated with the inflammatory response.
5. A 10-year-old male presents to his primary care provider reporting wheezing and difficulty breathing. History reveals that both of the child's parents suffer from allergies. Which of the following terms would be used to classify the child?
- A. Desensitized
- B. Atopic
- C. Hyperactive
- D. Autoimmune
Correct answer: B
Rationale: In this case, the correct term to classify the child is 'Atopic.' Atopic individuals have a genetic predisposition to developing allergic conditions, as seen in this patient with a family history of allergies. 'Desensitized' refers to reduced sensitivity to an allergen, which is not the case here. 'Hyperactive' relates to an exaggerated response, and 'Autoimmune' involves the immune system attacking its own cells, neither of which accurately describes the child's classification based on the provided history.
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