CAMRT Radiography Practice Exam

What is the single most effective means of controlling the spread of infectious organisms?

1. Wearing gloves

2. Wearing masks

3. Hand washing

4. Sterilization

The correct answer is: Hand washing

Hand washing is widely recognized as the single most effective means of controlling the spread of infectious organisms. This practice removes physical contaminants from the hands, including bacteria, viruses, and other pathogens that can be transferred from person to person or through contaminated surfaces. The process of hand washing involves using soap and water to create a mechanical action that helps dislodge dirt and microorganisms, which are then rinsed away. Regular and thorough hand washing, particularly before and after patient contact or handling food, is crucial in healthcare settings to prevent healthcare-associated infections (HAIs). While wearing gloves, masks, and sterilization are important infection control measures, they are often secondary to the fundamental practice of hand hygiene. Gloves can provide a barrier against pathogens, but if hands are not washed beforehand or if gloves are not used properly, the risk of spreading infection remains. Masks play a role in preventing respiratory infections, especially in close-contact situations, but they do not address hand-borne transmission. Sterilization is essential for specific items, particularly surgical instruments, but it does not apply to the broader context of controlling everyday infection spread among individuals. Overall, hand washing is the most practical and accessible method for everyone to significantly reduce the risk of infection, making it the cornerstone of