Which of the following is NOT included in the prenatal screening for STIs?

The correct response is that rubella titer is not included in the prenatal screening specifically for sexually transmitted infections (STIs). Prenatal screening for STIs typically focuses on infections that can be transmitted through sexual contact and that pose a risk during pregnancy, such as syphilis, HIV, and hepatitis B. These screenings are vital for preventing vertical transmission from the mother to the fetus, managing maternal health, and ensuring appropriate interventions can be implemented if necessary.

Rubella, while important to test for during pregnancy, is not classified as an STI in the traditional sense. A rubella titer is evaluated to assess immunity against rubella, which is crucial for preventing congenital rubella syndrome. This condition arises not from sexual transmission but from maternal infection during pregnancy, affecting the developing fetus. This distinction clarifies why rubella testing is included in general prenatal care but not specifically in STI screenings.