Texas Certified Nursing Assistant (CNA)

What is one way that bloodborne pathogens can be transmitted?

1. Through inhalation of pathogens

2. By infected blood entering the bloodstream

3. By rubbing eyes with unwashed hands

4. Through casual contact with infected individuals

The correct answer is: By infected blood entering the bloodstream

Bloodborne pathogens are infectious organisms present in human blood that can cause disease. One primary way these pathogens are transmitted is through infected blood entering the bloodstream. This typically occurs through needlesticks, cuts, or open wounds, where the contaminated blood can directly access the bloodstream of another individual. This mode of transmission is particularly significant in healthcare settings, where exposure to blood is more likely and where stringent precautions are necessary to prevent infection. The other options describe different transmission methods that do not specifically pertain to bloodborne pathogens. Inhalation of pathogens is more associated with respiratory infections, while rubbing your eyes with unwashed hands refers to the transmission of pathogens through mucous membranes but does not directly involve blood. Casual contact generally does not allow for the transmission of bloodborne pathogens since these require direct blood contact to pose a risk. Thus, option B accurately captures the primary transmission mechanism relevant to bloodborne pathogens.