A purified protein spinoff (PPD) check, often known as a Mantoux tuberculin pores and skin check (TST), is a technique used to find out if a person has been contaminated with Mycobacterium tuberculosis, the micro organism that causes tuberculosis (TB). It includes injecting a small quantity of PPD below the pores and skin of the forearm. After 48 to 72 hours, a healthcare skilled checks the injection website for a response. The dimensions of any raised, exhausting space (induration) is measured and, together with different danger components, used to find out if the check is optimistic or destructive, indicating potential TB an infection.
Figuring out latent TB an infection is essential, particularly throughout being pregnant, as a result of being pregnant can weaken the immune system, doubtlessly permitting latent TB to turn into lively. Lively TB poses vital well being dangers to each the pregnant particular person and the creating fetus, together with elevated danger of untimely beginning, low beginning weight, and congenital TB. Traditionally, screening for TB in pregnant people has been a significant public well being measure to stop the unfold of the illness and defend susceptible populations.