I got a TB test today for my law enforcement medical exam and I am looking online to figure out test results. I am not sure, so 0 reaction to the injection, meaning no bump, no discoloration, no nothing means a negative test. and a reaction, bump, red color = positive test?
Respiratory Diseases - 5 Answers
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1 :
Maybe this will help you out.
2 :
Even if you have a positive test it doesn't mean that you have TB. It can mean that you are just a carrier. Being a carrier doesn't mean you are infectious either, it just means that you have it in your system, but not contagious or sick. My mom is a carrier, but doesn't have TB.
3 :
If the site of the test is swollen, red and a little hard that is a positve test. If no redness or redness is less than 2 mm that is negative. If you had a positve test you would have to have a chest x-ray to rule out TB. A positive would indicate you had at some time in your life been exposed to TB but it doesn't mean you have a current infection of TB.
4 :
Not exactly. The bump has to be read between 2-3 days after the injection, and the bump (reaction) has to be 15mm or larger in size to be considered a true reaction.
5 :
redness and swelling that is greater than 15cm across is a positive test in most people, the test needs to be read and documented by a medical professional between 48 to 72 hours after the test is administered. Different situations alter the size at which the test is read positive, that is why a medical professional needs to assess and read the test
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