he had a the test done 3 months ago immigration purposes only and now they told him to do it again and it came out positive .he needed a physical done for his new job.he explain to them that he already has the test done but they needed to check again he already has the tb shot when he was younger . the skin test came out positive but the x ray came out perfect is this something to be concer about? should i be teste d also? can somebody explain to me if this is normal? can he get the tb shot again although he alrady has it from when he was younger?
Infectious Diseases - 4 Answers
Random Answers, Critics, Comments, Opinions :
1 :
The BCG tuberculosis vaccine, which is used in many countries but not the united states, can cause a false positive on the ppd skin test for tb. If his chest x-Ray was fine then he probably does not have tuberculosis.
2 :
The tb skin test does NOT indicate tb infection- it indicates tb exposure. There is a BIG difference. The skin test is a preliminary test to see if he has ever been exposed to it. Many people will test positive on the skin test but do not have the infection. Hope this helps!
3 :
It just means he 's been exposed to the virus, not that he has TB. A check xray will rule that out. It's nothing to worry about.
4 :
Positive skin test means a person is exposed to the tuberculosis bacteria at some time in the past. Now that the chest X ray is negative, there is nothing to worry about
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