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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Conducted Mantoux Test, Injection Area Looks Like Red Bump. Does This Mean TB Positive ?

i have conduct a mantoux test last 3 days. After i get injected, i hardly press the injection area. Now after 3 days, the injection area look like having a red bump. Does this mean i might be positive TB? Or maybe because i hardly press the injection area can cause the injection area having a red bump? Because as far as i know, i never having the TB symptom before. Thank you
Tue, 23 Oct 2012
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General & Family Physician,  's  Response
Hello and thanks for the query
Mantoux test is said to be positive if redness at the site if more than 5 mm unless it is infected. As you have described their is bump I think this could be infected. It is better to consult you treating doctor and get it confirmed. Your treating doctor can correlate it with clinical finding and get to a decision. Any delay in the treatment of TB can create problem. You can also go for TB Elisa test as a confirmatory test for TB if you has some doubt.
Hope I have answered you query.
Best Wishes
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  User's Response
Dr. Neeraj Gupta's  Response
hi
welcome hwc
no only red macular area not represent that you have suffered TB.If area of red discolouration is more than 10 cm than you could have T.B.Otherwise negative.o.k
happy
dr_neerajgupta_hotmail.com
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Conducted Mantoux Test, Injection Area Looks Like Red Bump. Does This Mean TB Positive ?

Hello and thanks for the query Mantoux test is said to be positive if redness at the site if more than 5 mm unless it is infected. As you have described their is bump I think this could be infected. It is better to consult you treating doctor and get it confirmed. Your treating doctor can correlate it with clinical finding and get to a decision. Any delay in the treatment of TB can create problem. You can also go for TB Elisa test as a confirmatory test for TB if you has some doubt. Hope I have answered you query. Best Wishes