Tb Two Step Form - Web result there are two types of latent tuberculosis infection (ltbi) screen tests: Web result when given a tst years after infection, these persons may have an initial negative reaction. A skin test and a blood test.
A skin test and a blood test. Web result when given a tst years after infection, these persons may have an initial negative reaction. Web result there are two types of latent tuberculosis infection (ltbi) screen tests: