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24-01-2024
Health

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A patient returns to the clinic to check results of the PPD (Mantoux) skin test 72 hours since the test was administered. The site of injection is reddened and has an induration that measures 12 mm. What is a likely explanation for this finding?
1) Negative skin test
2) Confirmed active TB infection
3) Recent exposure to TB
4) History of BCG vaccination
5) Dormant TB disease

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