frank100
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A 23 y/o male seeks medical attention for perennial nasal congestion and postnasal discharge. He states that he does not have asthma, eczema, conjunctivitis or a family history of alergic disease. Nasal secretions are rich in eosinophils. The test most likely to yield a aspecific diagnosis in this setting is.
A. serun IgE level (competitive radioimmunosorbent technique)
B. serum IgE level (radiodiffusion techniques)
C. elimination diet test
D. skin testing
E. sinus X-rays
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| robin082006
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B?
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| GDS2008
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In this case we already know the general diagnosis which is allergic rhinitis. We need a specific diagnosis (i.e. the million dollar question, what allergen is responsible in specific). Therefore, the only test (from the list) that can give a specific diagnosis is D. Skin testing
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| tolito
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perennial allergic rhinitis??
i would think more in line of a chronic sinusitis. so i will go for a sinus xrays.
pray tell, what is the differenc between the 2 types of Ig E tests??
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| mazinger
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I go for the skin testing, but this question is bizarre guys!
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| GDS2008
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Just a point here, nasal cytology showing eosinophils is highly specific for allergic rhinitis. So the next step should be to identify whihc allergen (skin testing). Sinus X-rays are rarely done today and is of very little clinical use. The two tests are different ways in whihc antibodies are measured in the lab; competitive radioimmunosorbent technique gives more quantitative results than radiodiffusion techniques. They do not need to be done here.
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| tolito
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thanks GDS2008.
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| frank100
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GDS2008 is right! it is (d) skin testing.
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