Sign-in to Ask A Doctor - 24x7
OR
Sign in with GoogleGet your health question answered instantly from our pool of 18000+ doctors from over 80 specialties
TB Test Done, Negative, Small Bumps At Injection Site, Pink Discoloration. Allergic Reaction?
I got a tb test done 6 days ago, I got it on wen and went back on friday for the results, the nurse said the test was negative. On sunday that week I developed small bumps around where the injection was that is in pink color compared to my skin. I had 2 step tb test done a year ago for school, and came up negative and no reaction at all. Is it an allergic reaction? I m 19 years old, 145 pounds and 5 4.
Thu, 3 Oct 2013
Hi,
Welcome to HCM.
Tuberculin Skin test is done to determine exposure to TB. This test is read within 48-72 hours only. If read later, it is not valid. The reaction is measured based on the size of the induration produced. Induration of skin is raised, hardened area at the injection site. Induration of 5mm or more is considered positive. If they are small bumps, you do not have to worry about them. If very itchy, apply calamine to soothe skin. Thanks.
Welcome to HCM.
Tuberculin Skin test is done to determine exposure to TB. This test is read within 48-72 hours only. If read later, it is not valid. The reaction is measured based on the size of the induration produced. Induration of skin is raised, hardened area at the injection site. Induration of 5mm or more is considered positive. If they are small bumps, you do not have to worry about them. If very itchy, apply calamine to soothe skin. Thanks.
I find this answer helpful
Disclaimer: These answers are for your information only and not intended to replace your relationship with your treating physician.
This is a short, free answer.
For a more detailed, immediate answer, try our premium service
[Sample answer]
Related questions you may be interested in
Recent questions on Tuberculosis
Loading Online Doctors....