Helping Hospitals Define Clean

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Evaluate environmental cleaning with ATP testing. 

As part of a Level II environmental monitoring program, the Centers for Disease Control and Prevention (CDC) recommends monitoring cleaning thoroughness with an objective measurement tool, such as an ATP Cleaning Verification System. The guide below explains how you can implement an ATP monitoring program according to the guidelines set forth by the CDC toolkit: Options for Evaluating Environmental Cleaning. Keep reading to learn how to set up your ATP program...

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Where should I test?

The CDC provides a list of recommended test sites, which include but are not limited to:

  • Bed control
  • Bed rail
  • Phone and call button
  • Light switch
  • Sink top
  • Flush handle
  • TV remote
  • Door knobs
  • Tray table
  •  Call boxes
  •  Telephones
  •  Bedside tables

  •  Patient chair
  •  IV pole
  •  Sink handle
  •  Handrails
  •  Toilet seat
  •  Flush handle
  •  Bedpan cleaning equipment
  •  IV pump control
  •  Monitor control panel
  •  Touchscreens
  •  Ventilator controls


Baseline monitoring.

Baseline monitoring is the initial testing regiment that should be conducted to accurately assess the current level of cleanliness and compliance to current cleaning processes. Results from initial testing will become the baseline to gauge improvement or deterioration of cleaning. The CDC recommends sampling all available surfaces in a 10-15% sample of patient rooms. In hospitals with less than 150 beds, all available surfaces should be tested in at least 10% of rooms. Baseline monitoring should be conducted at least three times per year. When cleaning scores have improved to at least 80% or higher pass results, you can confidently scale your testing to an optimized monitoring plan, described below.  

room locations

Affordable, low labor investment.

A monitoring program doesn't need to cost an arm and a leg. You can implement a program according to CDC recommendations for only a few hundred dollars per month with little impact on additional labor.

Refer to the table below:

Beds      Locations        Tests/yr                     Investment (US$)                 Labor hours      
100 1,200  360 - 540  $702 - 1,053 3 - 5 
200 2,200  660 - 990  $1,287 - 1,931 6 - 8
300 3,200  960 - 1,440  $1,872 - 2,808  8 - 12
400 4,200  1,260 - 1,890 $2,457 - 3,686  11 - 16
500 5,200  1,560 - 2,340 $3,042 - 4,563 13 - 20 
600 6,200  1,860 - 2,790 $3,627 - 5,441 16 - 23 
700 7,200  2,160 - 3,240 $4,212 - 6,318 18 - 27
800 8,200  2,460 - 3,690 $4,797 - 7,196  21 - 31 
900 9,200  2,760 - 4,140 $5,382 - 8,073  23 - 35 
1,000 10,200  3,060 - 4,590 $5,967 - 8,951  26 - 38

Optimized monitoring. 

When hospitals have achieved more than 80% or higher pass results from baseline monitoring, the number of surfaces to be monitored can be scaled to those available in a more economical sample of rooms. If the proportion of passing scores decreases during ongoing testing, this demonstrates a deterioration in cleaning practices and troubleshooting is required. More testing may be necessary to identify trouble areas.  


Daily monitoring results in a cleaner hospital.

By merely implementing a monitoring tool, cleaning personnel may perform more consistently because they know cleaning performance will be measured regularly. This is also known as the Hawthorne effect. Around the globe, more and more hospitals are moving to daily or monthly ATP cleaning verification. Daily monitoring only requires a few tests per day, yet holds cleaning staff accountable for achieving an optimal level of cleanliness each and every day.

Contact us for help designing a testing program that works for you.

EVS mop

Monitor Hand Hygiene.

Hygiene monitoring based on ATP bioluminescence is a simple method that can be used as part of a handwashing monitoring and training program. This downloadable guide, Using ATP Cleaning Verification to Monitor Hand Hygiene, describes the easy steps and recommended RLU limits for healthcare.  

handwash sm

Getting started is easy.

Follow along with our online Getting Started Guide. With downloadable setup guides and instructional videos, your ATP Cleaning Verification program will be up and running in no time.

Contact us for more information or to request a free demo of our leading ATP system!