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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Tests Should Be Done To Diagnose For TB?

Hi, may I answer your health queries right now ? Please type your query here...my son just test positive for TB test based on size of reaction...20 mm. Had chest x-ray and all is clear, what else should be done to ck to see if he has TB. Is is currently a nursing student

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Fri, 1 Aug 2014
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General & Family Physician,  's  Response
Hello
As your son in not having and sign or symptoms and in spite of this he had Mantoux's test positive.
Possibilities may be that FALSE +VE test due to rubbing of tested site or due to other immunosuppressive .
Other tests are blood for C B C , E S R ( if very high i.e.>100 mm of 1st hour highly suggestive of some chronic infectious or tuberculosis ).
Sputum for A F B .
Sputum for culture and sensitivity test .
If sputum is not producing take it with the help of nasal tube .
Bronchoscopy is also important for diagnostic purposes.
One more X RAY for Chest .
Polymerase Chain reaction test is also an important tool for diagnostic purposes.
So consult CHEST & TUBERCULOSIS specialist and get his opinion.
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What Tests Should Be Done To Diagnose For TB?

Hello As your son in not having and sign or symptoms and in spite of this he had Mantoux s test positive. Possibilities may be that FALSE +VE test due to rubbing of tested site or due to other immunosuppressive . Other tests are blood for C B C , E S R ( if very high i.e. 100 mm of 1st hour highly suggestive of some chronic infectious or tuberculosis ). Sputum for A F B . Sputum for culture and sensitivity test . If sputum is not producing take it with the help of nasal tube . Bronchoscopy is also important for diagnostic purposes. One more X RAY for Chest . Polymerase Chain reaction test is also an important tool for diagnostic purposes. So consult CHEST & TUBERCULOSIS specialist and get his opinion.