- 0May 22, '13 by elieth478Hi guys. I just got tested for tuberculosis before nursing school begins. The spot where the test was done is big and red, but not swollen (it is not raised from the skin). Ive had this test before and had to get a chest xray. Hopefully this time i wont have to. Any thoughts?
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- 0May 22, '13 by Chinook2As I understand it the size of the raised area from the skin test is key, not all of the redness. If there is any doubt they will send you for a chest xray. There is also a gold standard serology test, gamma interferon I think, that can definitively tell if you're positive. If your chest xray comes back negative but the skin and blood tests are positive and you're asymptomatic then you may have latent t.b. which will require a prophylaxis antibiotic to help keep you from converting to active t.b.
- 0May 22, '13 by 4boysmamaThe redness/erythema is not indicative of a positive reaction - it's only an induration/raised area, and then only if the induration is >10mm. I always get a big red (flat) splotch, because I've got super sensitive skin that overreacts to anything! If you've had an induration previously and had the chest xray - what did that show? Did it show latent TB (ie: granulomas on lung tissue) or was xray completely clear?
- 0May 22, '13 by MommaTyIf you have ever tested positive you will always test positive. So all you will need to say is I test positive and they will just send you for the X-ray. Happens to my mom because she used to live in England and a vaccine they give there causes her to always have a positive PPD, so they just do the chest X-ray. Good luck. It just means you were exposed, doesn't mean you have an active TB infection, that's why they do the chest x-ray.