Standard precautions are a set of infection control practices nurses apply during every patient encounter, regardless of whether the patient is known to have an infection. They treat all blood, body fluids, non-intact skin, and mucous membranes as potentially infectious. In practice, maintaining standard precautions comes down to consistent habits across several categories: hand hygiene, PPE use, sharps safety, respiratory hygiene, environmental cleaning, and safe handling of linens and waste.
Hand Hygiene: The Five Critical Moments
Hand hygiene is the single most effective way to prevent healthcare-associated infections, and it follows a specific framework built around five moments during patient care:
- Before touching a patient
- Before a procedure
- After a procedure or body fluid exposure risk
- After touching a patient
- After touching a patient’s surroundings
Alcohol-based hand rub is the preferred method for most of these moments because it’s fast and effective. The exception is when hands are visibly soiled or contaminated with blood or body fluids. In those cases, soap and water is required. The same applies after caring for a patient with certain spore-forming organisms like C. difficile, since alcohol doesn’t kill spores.
A common mistake is skipping the fifth moment. Touching a bedrail, IV pole, or bedside table counts as contact with the patient’s environment, and those surfaces can harbor the same organisms found on the patient’s skin.
Choosing the Right Personal Protective Equipment
PPE selection isn’t about wearing everything available. It’s based on the nature of the patient interaction and the anticipated level of exposure to infectious material. Choosing correctly means thinking one step ahead about what you’ll encounter.
Gloves are needed when you anticipate contact with blood, body fluids, mucous membranes, non-intact skin, or the insertion point of any invasive device. Change gloves between tasks on the same patient if you move from a contaminated body site to a clean one, and always perform hand hygiene after removing them.
Gowns go on when your clothing or exposed skin could come into contact with blood or body fluids. This includes wound care, procedures likely to generate splashes, and handling containers of patient fluids that could leak or spill.
Masks and eye protection are required when splashes or sprays of blood or body fluids are anticipated. A face mask covers the nose and mouth, goggles protect the eyes, and a face shield covers all three at once. For any procedure where fluid could become airborne, even briefly, both the mouth and eyes need coverage.
The key principle: put PPE on before entering the patient’s space, and remove it before leaving. The removal sequence matters because the outside surfaces of gloves and gowns are considered contaminated. Gloves come off first, followed by hand hygiene, then the gown, then eye protection, then the mask, with hand hygiene again at the end.
Sharps Safety and Disposal
Needlestick injuries remain one of the most common ways nurses are exposed to bloodborne pathogens. OSHA requires that sharps disposal containers be placed as close as feasible to the area where sharps are used. They must be closable, puncture-resistant, and kept upright to prevent spills.
Never recap a used needle. This is one of the leading causes of needlestick injuries. Used needles and syringes go directly into the sharps container immediately after use. Containers should not be overfilled, as reaching into or pressing down on an overfull container dramatically increases injury risk. Before a container is removed or replaced, it must be closed.
If a container could leak, OSHA requires a secondary container that is also closable, labeled or color-coded red, and capable of containing all contents during transport.
Safe Injection Practices
Needles, cannulas, and syringes are sterile, single-use items. A syringe should never be used on more than one patient, even if the needle is changed. Once a syringe has entered or connected to a patient’s IV line, it is considered contaminated.
Single-dose vials are preferred whenever possible, and any leftover medication in a single-dose vial should never be saved for another patient or combined with other leftovers. When multi-dose vials are necessary, both the needle and syringe used to access them must be sterile. Multi-dose vials should not be kept in the immediate patient treatment area, and they should be discarded if there is any question about sterility.
Respiratory Hygiene and Cough Etiquette
Standard precautions extend to managing respiratory secretions at the point of entry into a healthcare facility. Patients with symptoms like coughing or sneezing should be offered a facemask (for anyone older than 2 years without medical contraindications) and encouraged to sit away from other patients. When possible, symptomatic patients should be placed in a separate room while waiting for care.
For nurses, this means identifying symptomatic individuals early, providing tissues and masks, and ensuring hand hygiene supplies are accessible in waiting areas. These steps contain respiratory droplets before they reach other patients or staff.
Patient Placement
Some patients contaminate their environment more than others. A patient who cannot maintain appropriate hygiene, whether due to incontinence, confusion, uncontrolled wound drainage, or another reason, should be prioritized for a private room. If no private room is available, consulting infection control professionals about alternative arrangements is the expected next step. The goal is to limit the spread of organisms to surfaces, equipment, and other patients sharing the space.
Environmental Cleaning and Disinfection
Surfaces in patient care areas need regular disinfection, typically daily or at minimum three times per week, plus any time they are visibly soiled. High-touch surfaces like bedrails, doorknobs, light switches, and overbed tables accumulate organisms quickly and serve as indirect routes of transmission.
The products used must be EPA-registered hospital disinfectants, applied according to the manufacturer’s directions. In patient care areas where you can’t tell whether a surface is contaminated with body fluids or just routine dust, a one-step disinfectant designed for housekeeping use is recommended. This eliminates the guesswork and ensures adequate decontamination regardless of what’s on the surface.
Handling Soiled Linens
Contaminated linens should be handled with minimal agitation. Shaking out a soiled sheet can send lint and microorganisms into the air, creating an aerosol exposure risk. Instead, fold or roll contaminated linen gently and place it directly into a bag or other appropriate containment at the location where it was used. OSHA prohibits sorting or rinsing contaminated laundry at the point of contamination.
Bags must be securely tied or closed to prevent leakage. A single bag is sufficient if it has adequate tensile strength, but wet linens that could soak through require a leak-resistant bag. All bags of contaminated laundry must be clearly labeled or color-coded so that anyone handling them during transport knows to use standard precautions.
What to Do After a Needlestick or Splash Exposure
Even with perfect technique, exposures happen. If you sustain a needlestick or cut, gently wash the area with soap and water. For splashes to the nose, mouth, or skin, flush with water. Eye exposures require irrigation with clean water, saline, or sterile irrigants.
Report the exposure to your supervisor immediately. You need evaluation by a medical professional as soon as possible, because post-exposure treatment for bloodborne pathogens like HIV is time-sensitive. The first dose of preventive medication should ideally be given within hours, not days. The outer limit is generally considered 72 hours, but sooner is always better. Evaluation also covers hepatitis B and hepatitis C exposure, each of which has its own follow-up protocol.