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학습 자료 둘러보기 →In a child with suspected tuberculosis, the single most important initial assessment is a detailed contact history. Children almost always acquire TB from an infectious adult or adolescent, making this step crucial for both diagnosis and public health.
The priority is to identify a source case. Ask specifically about household or close contacts with a persistent cough, known TB, or recent treatment. This epidemiologic link dramatically raises the pre-test probability of TB in the child.
Contact investigation is an urgent public health measure. Identifying a source case allows for prompt treatment, interrupting ongoing transmission. Do not delay this assessment while waiting for the child's diagnostic test results.
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