4. All of the following are Other Potentially Infectious Materials (OPIMs) EXCEPT: Blood products Fluids in the lungs Sweat Vaginal fluids

To determine which of the listed options is not considered Other Potentially Infectious Materials (OPIMs), we need to understand what OPIMs are. OPIMs are defined as any bodily fluids that may contain infectious agents and pose a risk of transmission of bloodborne pathogens. Let's analyze each option: 1. **Blood products**: These are considered OPIMs because they can contain infectious agents. 2. **Fluids in the lungs**: These can also be considered OPIMs, as they may contain pathogens, especially in cases of infection. 3. **Sweat**: This is generally not considered an OPIM. Sweat does not typically transmit bloodborne pathogens and is not classified as potentially infectious. 4. **Vaginal fluids**: These are considered OPIMs because they can contain infectious agents. Based on this analysis, the correct answer is: **Sweat** is the option that is NOT considered Other Potentially Infectious Materials (OPIMs).