· 1. A 40-year-old woman who experiences severe seasonal allergies has been referred by her family physician to an allergist for weekly allergy injections. The woman is confused as to why repeated exposure to substances that set off her allergies would ultimately benefit her. Which of the following phenomena best captures the rationale for allergy desensitization therapy? (Points : 0.4) Repeated exposure to offending allergens binds the basophils and mast cells that mediate the allergic response. Exposure to allergens in large, regular quantities overwhelms the IgE antibodies that mediate the allergic response. Repeated exposure stimulates adrenal production of epinephrine, mitigating the allergic response. Injections of allergens simulate production of IgG, which blocks antigens from combining with IgE. Question 2. 2. A 24-year-old woman presents with fever and painful, swollen cervical lymph nodes. Her blood work indicates neutrophilia with a shift to the left. She most likely has: (Points : 0.4) A mild parasitic infection A severe bacterial infection A mild viral infection A severe fungal infection Question 3. 3. A 60-year-old male patient with an acute viral infection is receiving interferon therapy. The nurse practitioner is teaching the family of the patient about the diverse actions of the treatment and the ways that it differs from other anti-infective therapies. Which of the following teaching points should the nurse practitioner exclude? (Points : 0.4) “Interferon can help your father’s unaffected cells adjacent to his infected cells produce antiviral proteins that limit the spread of the infection.” “Interferon can help limit the replication of the virus that’s affecting your father.” “Interferon helps your father’s body recognize infected cells more effectively.” “Interferon can bolster your father’s immune system by stimulating natural killer cells that attack viruses.” Question 4. 4. As part of his diagnostic workup, a 77-year-old man’s nurse practitioner has ordered blood work that includes ferritin levels. The man is very interested in the details of his health care and is unfamiliar with ferritin and its role. He asks his nurse practitioner to explain the significance of it and the rationale for testing it. Which of the following explanations by the nurse practitioner is most accurate? (Points : 0.4) “Ferritin is the activated and usable form of iron that your red blood cells can use to transport oxygen.” “Ferritin is a stored form of iron that indirectly shows me whether you would benefit from iron pills.” “Ferritin is a protein-iron complex that allows your red blood cells to make use of the iron that you consume in your diet.” “Ferritin is the form of iron that is transported in your blood plasma to the red blood cells that need it.” Question 5. 5. A 16-year-old female has been brought to her primary care nurse practitioner by her mother due to the girl’s persistent sore throat and malaise. Which of the following facts revealed in the girl’s history and examination would lead the nurse practitioner to rule out infectious mononucleosis? (Points : 0.4) The girl has a temperature of 38.1°C (100.6°F) and has enlarged lymph nodes. Her liver and spleen are both enlarged. Blood work reveals an increased white blood cell count. Chest auscultation reveals crackles in her lower lung fields bilaterally. Question 6. 6. Which of the following patients is most likely to benefit from transplantation of thymic tissue or major histocompatibility complex (MHC)-compatible bone marrow? (Points : 0.4) A 12-year-old girl with a history of epilepsy and low IgG levels secondary to phenytoin use A 7-year-old boy whose blood work indicates decreased IgA and IgG with increased IgM A 6-year-old boy whose pre-B cells are incapable of translation to normal B cells A 9-year-old girl who has a diagnosis of IgA deficiency Question 7. 7. A 14-year-old boy has been diagnosed with infectious mononucleosis. Which of the following …
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