Which of the following is NOT considered a high-risk behavior for HIV transmission?

Regular health screenings are not considered a high-risk behavior for HIV transmission because they involve proactive health measures that can help identify and manage health conditions, including sexually transmitted infections, before they escalate. Regular screenings can lead to early detection of HIV, allowing for timely intervention and treatment, which ultimately reduces the risk of transmission.

In contrast, the other options—unprotected sex, IV drug use, and substance abuse—are associated with higher risks for HIV transmission. Unprotected sex can lead to direct exposure to the virus through bodily fluids, while IV drug use commonly involves sharing needles, creating a pathway for HIV to spread. Substance abuse can impair judgment and lead to risky sexual behaviors, further increasing the likelihood of HIV transmission. Thus, regular health screenings represent a preventative strategy rather than a high-risk behavior.