Wednesday, April 28, 2010

How big is the lump in a positive tuberculin skin test?

Is it visible? Like a mosquito bite or what?|||After 3 days, there should not be any lump. If there is a lump, it is a possitive reading. Follow up with a chest xray.|||one cm. or more induration (swelling)


almost a half and inch.|||Yes, it will be visible.|||It could be anywhere from 5 to 15 mm. Most of the time it would be 10. Trust me if you see anything out of the ordinary then that might indicate TB.|||Yes, it is visible and you can feel it if you rub your finger over top of it. It will be the size of a mosquito bite or larger. If you have any question at all, you should go back to the doctor that gave you the test or go to your local health department and have them take a look.

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