ATI RN
Pathophysiology Exam 1 Quizlet
1. When a patient asks the nurse what hypersensitivity is, how should the nurse respond? Hypersensitivity is best defined as:
- A. A reduced immune response found in most pathologic states
- B. A normal immune response to an infectious agent
- C. An excessive or inappropriate response of the immune system to a sensitizing antigen
- D. Antigenic desensitization
Correct answer: C
Rationale: Hypersensitivity is correctly defined as an excessive or inappropriate response of the immune system to a sensitizing antigen. This response leads to tissue damage or other clinical manifestations. Choice A is incorrect as hypersensitivity involves an exaggerated, not a reduced, immune response. Choice B is incorrect because hypersensitivity is not a normal immune response to an infectious agent but rather an exaggerated one. Choice D is incorrect as it refers to desensitization, which is the opposite of hypersensitivity.
2. A hemoglobin electrophoresis is done to evaluate for sickle cell disease. The report reveals the person has HbAS, which means the person:
- A. is normal with no sickle cell disease.
- B. is a sickle cell carrier.
- C. has sickle cell anemia.
- D. has thalassemia.
Correct answer: B
Rationale: HbAS indicates sickle cell trait, not full-blown sickle cell anemia. Choice A is incorrect because HbAS indicates the presence of the sickle cell trait. Choice C is incorrect as sickle cell anemia is characterized by HbSS, not HbAS. Choice D is incorrect as thalassemia is a different type of hemoglobin disorder not indicated by HbAS.
3. A nurse is teaching a patient about the use of testosterone gel for the treatment of hypogonadism. What important instruction should the nurse provide?
- A. Apply the gel after showering, and allow it to dry completely before dressing.
- B. Apply the gel to the genitals for maximum absorption.
- C. Apply the gel before bedtime to enhance absorption during sleep.
- D. Apply the gel to the face and neck for improved results.
Correct answer: A
Rationale: The correct instruction is to apply testosterone gel after showering and allow it to dry completely before dressing. This helps prevent the transfer of the gel to others and ensures proper absorption. Choice B is incorrect because the gel should not be applied to the genitals. Choice C is incorrect as there is no specific benefit to applying the gel before bedtime. Choice D is incorrect as the gel should not be applied to the face and neck for the treatment of hypogonadism.
4. After studying about viruses, which information indicates the student has a good understanding of viruses? Viruses:
- A. Contain no RNA or DNA
- B. Are capable of independent reproduction
- C. Replicate their genetic material inside host cells
- D. Are killed easily by antimicrobials
Correct answer: C
Rationale: The correct answer is C. Viruses replicate their genetic material inside host cells, which is a fundamental aspect of their life cycle. Choice A is incorrect because viruses contain either RNA or DNA. Choice B is incorrect as viruses cannot reproduce independently and rely on host cells for replication. Choice D is incorrect as viruses are not easily killed by antimicrobials due to their unique structure and mechanisms of infection.
5. Which of the following is NOT an example of clinical manifestations of leukemia and lymphoma?
- A. Fatigue
- B. Increased risk of bleeding
- C. Increased risk of infections
- D. Increased energy and strength
Correct answer: D
Rationale: The correct answer is D: Increased energy and strength. Leukemia and lymphoma typically present with symptoms such as fatigue, weakness, increased risk of bleeding, and increased risk of infections. Patients with these conditions often experience a lack of energy and strength due to the disease's impact on the body. Therefore, increased energy and strength are not typical manifestations of leukemia and lymphoma.
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