ATI RN
ATI Pathophysiology Exam 2
1. After teaching the students about B cells, which statement indicates teaching was successful? B cells are originally derived from cells of the:
- A. Bone marrow
- B. Lymph nodes
- C. Gut-associated lymphoid tissue
- D. Thymus
Correct answer: A
Rationale: The correct answer is A: Bone marrow. B cells are originally derived from cells of the bone marrow. Bone marrow is the primary site where B cells develop and mature. Lymph nodes (choice B), gut-associated lymphoid tissue (choice C), and the thymus (choice D) are involved in the immune response but are not the primary site of origin for B cells.
2. What common symptom should be assessed in individuals with immunodeficiency?
- A. Anemia
- B. Recurrent infections
- C. Hypersensitivity
- D. Autoantibody production
Correct answer: B
Rationale: Recurrent infections are a hallmark symptom of immunodeficiency. Individuals with impaired immune systems are more susceptible to recurrent infections due to their compromised ability to fight off pathogens. Anemia (Choice A) is not a direct symptom of immunodeficiency but can be a consequence of chronic diseases. Hypersensitivity (Choice C) refers to exaggerated immune responses rather than impaired immune function. Autoantibody production (Choice D) is not typically a primary symptom of immunodeficiency but may be seen in certain autoimmune conditions.
3. How are antibodies produced?
- A. B cells
- B. T cells
- C. Helper cells
- D. Memory cells
Correct answer: A
Rationale: Antibodies are produced by B cells. B cells are specialized white blood cells that generate antibodies as part of the immune response. B cells differentiate into plasma cells that secrete antibodies. T cells play a role in cell-mediated immunity, not antibody production. Helper cells, or helper T cells, assist in activating B cells but do not directly produce antibodies. Memory cells store information about previous infections but do not actively produce antibodies.
4. A client with Guillain-Barré syndrome is experiencing ascending paralysis. Which of the following interventions should the nurse prioritize?
- A. Monitor for signs of respiratory distress.
- B. Prepare the client for plasmapheresis.
- C. Administer analgesics for pain management.
- D. Initiate passive range-of-motion exercises.
Correct answer: A
Rationale: The correct answer is A: Monitor for signs of respiratory distress. In Guillain-Barré syndrome, ascending paralysis can lead to respiratory muscle involvement, putting the client at risk for respiratory distress and failure. Prioritizing respiratory monitoring is crucial to ensure timely intervention if respiratory compromise occurs. Plasmapheresis (Choice B) may be indicated in some cases to remove harmful antibodies, but the priority in this situation is respiratory support. Administering analgesics (Choice C) for pain management and initiating passive range-of-motion exercises (Choice D) are important aspects of care but are not the priority when the client's respiratory status is at risk.
5. Rhabdomyolysis can result in serious complications. In addition to muscle pain and weakness, a patient will complain of:
- A. paresthesias.
- B. bone pain.
- C. dark urine.
- D. diarrhea.
Correct answer: C
Rationale: Dark urine is a classic symptom of rhabdomyolysis. When muscle breakdown occurs, myoglobin is released into the bloodstream and filtered by the kidneys, leading to dark urine. Paresthesias (choice A) refer to abnormal sensations like tingling or numbness and are not typically associated with rhabdomyolysis. Bone pain (choice B) is not a prominent symptom of rhabdomyolysis. Diarrhea (choice D) is not a common complaint in rhabdomyolysis cases and is not directly related to muscle breakdown.
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