Page "Body substance isolation" Paragraph 2

Body substance isolation went further than universal precautions in isolating workers from pathogens, including substances now currently known to carry HIV.

These pathogens fall into two broad categories, bloodborne ( carried in the body fluids ) and airborne.

The practice of BSI was common in Pre-Hospital care and Emergency Medical Services due to the often unknown nature of the patient and his / her disease or medical conditions.

It was a part of the National Standards Curriculum for Prehospital Providers and Firefighters.