frank100
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which of the following contacts with a patient infected with tuberculosis is most likely to develop the disease?
a) the child of a patient with smear negative, culture positive pulmonary Tuberculosis.
b) the coworker in a small office of a patient with laryngeal tuberculosis.
c) The HIV negative partner of an HIV infected patent with pulmonary Tuberculosis.
d)the parent of a young child in diapers with renal tuberculosis
e) the spouse of a patient with miliary tuberculosis.
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| shumaila
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b or e
I think b
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| GDS2008
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I am confused between b and e. Between these two, I think b) co-worker in a small office with laryngeal tuberculosis is more likely (purely logical guess).
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| icemaiden
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b?
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| frank100
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yup , (b)
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| achilles
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nice question frank. i did not know this. can yu pls explain the answer to me on why it is b and not the others. thanks !
is it the duration of contact with the patient which is the determining factor in getting the disease ?
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| frank100
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answer B: M. Tuberculosis is spread by droplet nuclei that are aerosolized by coughing, sneezing or speaking. the droplets dry quickly and may stay airborne and subject to inhalation for hours. The probability of acquiring tuberculosis is related to the degree of infectiousness and the intimacy and duration of contact. Smear positive patients have the greatest infectivity. patients with cavitary, laringeal, or endobronquial disease rpoduce the most infectious organisms. patients with smear-negative/culture-positive or disseminated disease are less infectious. patients with culture-negative (treated) or extrapulmnary tuberculosis are essentially non-infectious. patients with tuberculosis who are HIV-patients also appear to be less infectious because of the lower frequency of cavitary disease. these factors emphasize the importance of public health measures to control the transmision of tuberculosis.
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| humbty
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NIce questions, where is it from?
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| ngaybinhyen
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very good one on TB
thanks, buddy
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| kpmle2
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yes its a very nice Q 
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| priya11
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thanx frank100.nice question.
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| galeen
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| chemamr
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agree
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