Unit 6.5. Facility design, renovation, and use

TB Infection Control Training for Managers

at National and Subnational Level

Objectives

After this unit, the participant will be able to:

• List basic design principles for maximizing natural ventilation

• Provide an example of facilitating patient flow to minimize exposure to infectious patients

• Provide an example of rethinking the use of space to decrease the risk of TB transmission

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Outline

A. The managerial activities of facility design, renovation and use

B. How facility design, renovation, and use can the risk of TB transmission

1. Reduce crowding

2. Maximize natural ventilation

3. Organize patient flow

C. Maintenance3

A. Inadequate design and use of space contribute to TB spread

Managerial activities at national and facility levels:

• Ensure that health facility design, construction, renovation and use are appropriate

• Rethink the use of available spaces to optimize implementation of controls

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Facility upgrade and reorganization includes:

• More complex solutions that require engineer or architect type of expertise

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• Simple interventions that do not require any structural change

B. How facility design, renovation, and use can reduce

the risk of TB transmission

1. Reduce crowding

2. Maximize natural ventilation

3. Organize patient flow to minimize exposure to infectious patients

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1. Reduce crowding

98 patients exposed vs. 9 + 9 = 187

2. Maximize natural ventilation

• Orientation to prevailing winds

• Elevation from the ground

• Stack ventilation

• Building dimensions

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• Placement and size of window openings for cross ventilation

Cross ventilation and shape

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Poor air mixing, little air exchange

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Cross ventilation

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Cross ventilation

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Windows design

Tilting windows

< 50% open area~ 100% open area

Sliding windows

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Tilting windows

Tilting windows (horizontal)

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3. Organize patient flow to minimize exposure to

infectious patients

Mixing of patients and staff

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Separation of patients and staff

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Crowded, indoor corridor used as a waiting area

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Outdoor waiting area

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Use of existing space

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Radiology

MDR ward

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Radiology

MDR ward

XXXXXX

New external stairs

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Sputum collection outside: a simple solution!

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Sputum collection

Don’t!Do!

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C. Facility maintenance

Clinic design needs to support the operation and maintenance of the facility throughout its life cycle

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Budget for maintenance

If the building has a 60 year life span, and the initial construction cost was 100 million, you will need to:

• budget 4% per year (4 million) for maintenance

• spend 240 million over the next 60 years on maintenance, or nearly two and half times the cost of initial construction

Risk of inadequate building maintenance

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Risk of inadequate engineering service maintenance

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Summary

• Managers should rethink the use of available spaces and consider renovation to optimize infection control

• Buildings can be designed or upgraded to decrease crowding and maximize natural ventilation

• Patient flow in facilities should be organized to diminish exposure by infectious patients.

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