Which practice is most effective to prevent contamination and the spread of infection within a hospital?

Which practice is most effective to prevent contamination and the spread of infection within a hospital?

• A. Hand washing
• B. Wearing gloves
• C. Using sanitizers
• D. Disinfecting surfaces

Answer: (A)

Hand washing is the most effective practice because it directly removes microorganisms from the skin, breaking the main route of transmission during patient care. Regular, proper hand hygiene before and after patient contact reduces the spread of infections by removing transient pathogens that hands can carry between people and surfaces. Gloves help protect hands but do not replace washing; they can have micro-tears and improper removal can transfer organisms. Disinfecting surfaces lowers environmental contamination, but the immediate risk of transmission comes from the hands, so hand hygiene has the greatest impact. Sanitizers are helpful, especially between gloves or when soap and water aren’t available, but they’re less reliable when hands are visibly dirty or when dealing with certain spores, making hand washing the most robust preventive measure overall.

Hand washing is the most effective practice because it directly removes microorganisms from the skin, breaking the main route of transmission during patient care. Regular, proper hand hygiene before and after patient contact reduces the spread of infections by removing transient pathogens that hands can carry between people and surfaces. Gloves help protect hands but do not replace washing; they can have micro-tears and improper removal can transfer organisms. Disinfecting surfaces lowers environmental contamination, but the immediate risk of transmission comes from the hands, so hand hygiene has the greatest impact. Sanitizers are helpful, especially between gloves or when soap and water aren’t available, but they’re less reliable when hands are visibly dirty or when dealing with certain spores, making hand washing the most robust preventive measure overall.