TB Test question?!

TB Test question?

I had a TB test done a week ago on Monday. I have had several TB tests done in the past since I worked at a daycare center and I am also now a health care worker. In the past, usually after the first day, there is no visible sign I had anything done. However, this time it's weird. I had the test done on Monday that week around 3pm. The nurse where I work had me return 9am on Wednesday. She said it was negative. At the time it was still red (not just the injection spot either), but flat. However over the next day, it started to swell and raise. Still today, it is visible and raised a little (mind you, this is 8 days later!). Any suggestions?

2 weeks ago
Ok, of course there is a break in the skin with any needle stick? LOL BUT when I had this done, I was not currently working in the nursing home. I didn't start work until the next Monday. So bacteria from there is very unlikely. And there is NO drainage from this place.

The Mantoux skin test needs to be read 48-72 hours after it is given. The nurse that gave it to you read it too early.

A positive test is when the induration measures 10mm or more in persons without HIV or recent close contact with a person with active tuberculosis. If you are HIV positive or have been in close contact with a person with tuberculosis or have had tuberculosis in the past it is positive if it measures 5mm or more.

A positive test may still be measurable after a week since administration.

On the other hand, if you have been itching it and touching it, you may be the one causing the redness and irritation. How raised the area is does not indicate a positive test. Measuring the diameter of the raised area is the only way to read a mantoux.

You need to have the test redone.