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Tb test positive or negative ?
I took a Tb test on Friday. Last night it started to itch a bit and it got a little red like the picture above (copy and past the link) there is no bump. It is just itchy and red. I have never been Tb positive since I’ve done the test three times in the past. Now I am a bit worried it might be a positive result.
2 Answers
- KerriLv 42 years ago
If there’s no hard, red bump that’s at least 5mm (about the size of a pencil eraser) that’s formed around the injection site, then your test is negative.
Source(s): Nurse whose done a lot of tb tests - 2 years ago
There are two types of tests for TB infection: the TB skin test and the TB blood test. A person’s health care provider should choose which TB test to use. Factors in selecting which test to use include the reason for testing, test availability, and cost. Generally, it is not recommended to test a person with both a TB skin test and a TB blood test.
