Keeping things free of germs; medical asepsis reduces organisms, surgical asepsis eliminates them entirely.
Asepsis is the set of practices that reduce or eliminate microorganisms to prevent infection. Medical asepsis is clean technique — hand hygiene and a clean environment — used to limit the number of organisms, while surgical asepsis is sterile technique used for invasive procedures to keep an area completely free of organisms. Hand hygiene, a clean environment, and properly maintained sterile fields are the core asepsis measures.
Keeping an infectious client separate and wearing the barriers their precaution type requires.
Isolation separates an infected client and uses barriers to prevent transmission to others. The type of isolation matches how the organism spreads — for example, airborne infections such as TB and measles require a negative-pressure room and an N95 respirator, while varicella requires both airborne and contact precautions (gown and gloves) until the lesions crust. Transmission-based precautions are always layered on top of standard precautions, never used instead of them.
Standard precautions for every client, plus contact, droplet or airborne measures when the organism calls for them.
Precautions are the standard and transmission-based measures used to interrupt the chain of infection. Standard precautions apply to all clients regardless of diagnosis or suspected infection, while transmission-based precautions (contact, droplet, airborne) are added for specific organisms. The foundation is to treat all blood and body fluids as potentially infectious at every contact.
The single most effective way to stop infection spreading; soap and water is required for C. difficile and for visible soil.
Handwashing removes pathogens from the hands and is the single most effective measure for preventing the spread of infection. Use soap and water — not alcohol-based gel — when caring for clients with C. difficile or other spore-forming organisms, since gel does not kill spores. Perform hand hygiene before and after every client contact and after removing gloves, which are not a substitute for clean hands.
A last-resort device limiting movement; it requires a provider order, a time limit, and regular circulation and skin checks.
Restraints are devices or methods that limit movement, used only as a last resort to protect the client or others from harm. They require a provider order, must be the least-restrictive type effective, and demand frequent monitoring of circulation, skin, and toileting; tie them to the bed frame, never to a movable side rail. Always try alternatives first, and remember that orders are time-limited and must be renewed per policy.
Free of all microorganisms, including spores; the standard for invasive procedures.
Sterile means free of all microorganisms, including spores, and is the standard for invasive procedures such as catheter insertion and surgery. Open and keep sterile fields above waist level and in sight, and treat the outer 1-inch border of the field as contaminated. Once a sterile field drops below the waist, is turned away from, or is out of sight, it is considered contaminated and must be replaced.
The most common cause of injury in hospitals; bed low and locked, call light within reach, non-skid footwear.
Falls are a leading cause of client injury, especially among older adults and those who are sedated, weak, or confused. Complete a fall-risk assessment on admission, keep the bed low and locked, ensure the call light and personal items are within reach, and clear the path to the bathroom. Hourly rounding and prompt response to call lights are evidence-based strategies that prevent falls.
Separating people who were exposed but are not yet sick, distinct from isolation, which applies to those already infected.
Quarantine restricts the movement of people who have been exposed to a communicable disease but are not yet showing symptoms, in case they become infectious. The key distinction for the exam: quarantine separates the exposed-but-well, whereas isolation separates those already known to be infected. Quarantine is a public-health tool deployed during outbreaks to limit spread before illness appears.