American Society for Clinical Pathology (ASCP) Histotechnician Certification Practice Exam

What is the most effective means of preventing the spread of infectious disease?

1. Using antibacterial gel

2. Wearing masks

3. Observing proper hand washing techniques

4. Cleaning surfaces regularly

The correct answer is: Observing proper hand washing techniques

Observing proper hand washing techniques is widely recognized as the most effective means of preventing the spread of infectious disease. This method reduces the number of pathogens on the skin, particularly on hands, which are often the primary carriers of germs that can lead to infection. Effective hand washing involves using soap and water to remove dirt, debris, and germs, followed by rinsing and drying, which further minimizes the risk of transmission. Hand washing is especially crucial before eating, after using the restroom, and after interacting with potentially contaminated surfaces or individuals. Proper hand hygiene is endorsed by health organizations globally, including the Centers for Disease Control and Prevention (CDC) and the World Health Organization (WHO), as a cornerstone of infection control practices. While options like using antibacterial gel, wearing masks, and cleaning surfaces regularly can also contribute to reducing the spread of infectious diseases, they are generally considered supplementary methods. Antibacterial gels may be effective when soap and water are not available but might not remove all types of germs. Masks help prevent respiratory droplets from spreading, and cleaning surfaces reduces the likelihood of contact with contaminated surfaces, but without the foundational practice of hand hygiene, these methods may not adequately prevent disease transmission.