3 Practices With the Biggest Impact
If a team can only focus on a few things during a fast turnover, these 3 practices are where that focus pays off most.
1. Follow the disinfectant label, down to the minute.
The disinfectant’s manufacturer’s instructions for use (IFU) or product label specifies the wet contact time required to kill the specific microorganisms it targets, such as viruses, C difficile, other bacteria, and that time only counts if the surface remains visibly wet for the entire duration. If it starts to dry, add more product rather than letting the clock run on a surface that is no longer wet.
Contact times vary by product and target organism, ranging from roughly 30 seconds to 10 minutes or more. For organisms like C difficile, the CDC specifically calls for an EPA-registered sporicidal disinfectant used for its full labeled contact time, since standard disinfectants aren’t effective against spores. Building a few extra seconds into the turnover workflow for reapplication is a smaller cost than reworking a surface that was cleared before it was actually disinfected.
2. Move clean to dirty, never dirty to clean.
Work outward from the cleanest surfaces toward the most contaminated ones, never the reverse, so contaminants don’t ride along from a dirty surface onto one that’s already been cleaned. The same logic applies vertically. Gravity pulls dust, debris, and disinfectant runoff downward, so tackling high surfaces first keeps that fallout from landing on areas still waiting for their turn.
This sequencing also aligns with how the CDC generally tiers the cleaning risk of health care surfaces. Low-touch surfaces such as floors and walls carry lower transmission risk than high-touch surfaces like OR tables, equipment controls, and light handles. Those high-touch surfaces are exactly the ones a cloth or mop head should reach last, once it’s no longer carrying contamination picked up earlier in the room. A sequence like this only holds up if everyone cleaning the room follows the same order. One person skipping ahead undoes the logic for the whole team.
3. Give every room its own clean material.
A cloth, wipe, or mop head that’s already touched one room shouldn’t touch another. Carrying it over from bay to bay carries contaminants along, and used material can’t disinfect as reliably as fresh material.
The risk here isn’t theoretical. A study on hospital cleaning practices found that reused cloth towels carried high microbial loads even after standard laundering, and that towels can interfere with the disinfectants they’re soaked in. Laundering alone isn’t a reliable safeguard, which is why the workflow itself has to be built around a clean material at the start of every room, not a laundering or restocking process that’s assumed to catch what the workflow misses.
Building the Habit, Not Just the Awareness
Perioperative nurses and environmental services professionals should start preparing now for what the updated guideline will ask of them, because how we approach cleaning and disinfection in the perioperative environment is changing. But awareness of a new guideline only goes so far. The real goal is to engage staff, support a genuine culture shift, and raise the profile of the people doing this work: EVS, who is too often an afterthought in how OR personnel think about infection prevention.
Ongoing education is what makes that culture shift hold. Cleaning steps that get taught once tend to erode under the same turnover pressure that causes the misses described above, and knowledge of a guideline update doesn’t change practice unless it’s revisited regularly. One hospital’s repeated training initiative for nursing and EVS staff found that the percentage of surfaces cleaned to standard rose from 20% after the first training session to 49% after the second and 82% after the third, with corresponding drops in C difficile, surgical site, and central line-associated infection rates over the same period.
A single in-service isn’t enough to change behavior at that scale; it’s the repetition that closes the gap between knowing a step and reliably doing it under pressure. Recurring competency checks, especially ones that revisit the specific misses a team already struggles with, keep environmental hygiene from sliding back into old shortcuts once the initial push around a new guideline fades.
Before the updated guideline is released, it’s worth getting the whole team into the same room to walk through current turnover practices together. Half the value of a guideline update comes from the conversation it forces a team to have about where its own process actually breaks down.
For teams that want to get ahead of the update, AORN’s Guideline Essentials for Environmental Hygiene (exclusive member content) offers a set of implementation tools worth working through together. That includes checklists for general environmental hygiene, multidrug-resistant organism cleaning, sterile processing, and OR/preop/postop turnover, along with guidance on differentiating cleaning procedures for high-touch objects and worked examples of between-patient cleaning in both surgical and preop/postop areas.
