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Table 2 Risk Stratification Matrix to determine the frequency of cleaning (example)

From: APSIC Guidelines for environmental cleaning and decontamination

Discipline

Probability of contamination

Potential for Exposure

Population

Total score

 

Light :1

High-touch : 3

Less susceptible:0

 

Moderate: 2

Low -touch:1

More susceptible: 1

Heavy: 3

  

Renal

2

3

1

6

Burns

2

3

1

6

Respiratory Medicine

2

3

0

5

General Medicine

2

3

1

6

Colorectal Surgery

2

3

0

5

Oncology

2

3

1

6

Neurology and Neurosurgery

2

3

0

5

Surgical Intensive Care Unit

3

3

1

7

Medical Intensive Care Unit

3

3

1

7

  1. Interpretation of total score: 7: High risk: clean after each case/event/procedure and at least twice per day, clean additionally as required; 46: Moderate Risk : clean at least once daily, clean additionally as required (e.g. Gross soiling), 23 : Low risk: clean according to a fixed scheduled, clean additionally as required (e.g. Gross soiling)