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NetWellness is a global, community service providing quality, unbiased health information from our partner university faculty. NetWellness is commercial-free and does not accept advertising.
Sunday, May 19, 2013
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NetWellness is a global, community service providing quality, unbiased health information from our partner university faculty. NetWellness is commercial-free and does not accept advertising.
Sunday, May 19, 2013
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Infectious Diseases |
TB testing10/01/2004 |
How long does it take for a Mantoux to clear out of a 40lbs child`s system? My son was given this test twice, the second one a week after the first one. A third test is being recommended after 30 days have passed from the last test. Are 30 days enough? I just want to avoid a false positive result due to tuberculin residue left in his system. Thank you!
As long as a standard Mantoux TB skin test with 0.1 ml of 5TU PPD is being given, there will not be a false positive with subsequent Mantoux testing. This was a problem with the much more concentrated 250TU PPD preparations that were used in the past. Currently, there is no indication for use of the 250TU PPD for Mantoux testing.
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Lisa A Haglund, MD Associate Professor of Clinical Medicine College of Medicine University of Cincinnati |
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