What is the difference between standard precautions and transmission-based precautions, and when is each used?

What is the difference between standard precautions and transmission-based precautions, and when is each used?

• A. Standard precautions apply to all patients; transmission-based precautions are added for known or suspected infections (airborne, droplet, contact).
• B. Standard precautions apply only to airborne infections.
• C. Transmission-based precautions replace standard precautions for all patients.
• D. Standard precautions are optional in most settings.

Answer: (B)

Standard precautions are the baseline practices used with every patient to prevent the spread of infections. They cover essential protections like hand hygiene, gloves when touching blood or body fluids, safe handling of needles and contaminated surfaces, and measures for respiratory hygiene. Transmission-based precautions are extra steps added only when a patient has or is suspected of having an infection that could spread in a specific way. These precautions are layered on top of standard precautions to block transmission through particular routes: airborne (tiny particles in the air, requiring measures like negative-pressure rooms and respirators), droplet (larger droplets needing masks and staying at a distance), and contact (gown and gloves to prevent spread by touch). So, you always use standard precautions with all patients, and add transmission-based precautions only when the infection status or route requires it.

Standard precautions are the baseline practices used with every patient to prevent the spread of infections. They cover essential protections like hand hygiene, gloves when touching blood or body fluids, safe handling of needles and contaminated surfaces, and measures for respiratory hygiene. Transmission-based precautions are extra steps added only when a patient has or is suspected of having an infection that could spread in a specific way. These precautions are layered on top of standard precautions to block transmission through particular routes: airborne (tiny particles in the air, requiring measures like negative-pressure rooms and respirators), droplet (larger droplets needing masks and staying at a distance), and contact (gown and gloves to prevent spread by touch). So, you always use standard precautions with all patients, and add transmission-based precautions only when the infection status or route requires it.