12+ What Does A Negative Tb Test Look Like Pics. I've had it positive couple of times, but not bc i had tb, i just had to have it redone. That's because your doctor will also consider your risk factors.
When you have your skin test done, you should have seen a small bleb on your skin where the what does a negative tb skin test look like.
A positive tuberculosis (tb) skin test could look different from person to person. (after adding test reagents) substrate enzyme what does a positive test look citrate utilization cifrote catalase test carbohydrate utilization as detected by carbohydrate fermentation tubes (be sure to include color of media/gas production in response. A positive reading looks red as well but the bump still remains. What happens during a tuberculosis skin test and what do the results mean?