Evaluating MSDS
First Aid Advice
Jessie Callaghan
Senior Technical Specialist
Jessie Callaghan
Canadian Centre for Occupational Health and Safety (CCOHS)
1-800-668-4284 www.ccohs.ca
Evaluating MSDS First Aid Advice
NAOSH 2009
Evidence-Based Approach
Identify specific questions
Search for relevant literature
Critically evaluate quality of evidence
Determine best answer
Jessie Callaghan
Canadian Centre for Occupational Health and Safety (CCOHS)
1-800-668-4284 www.ccohs.ca
Evaluating MSDS First Aid Advice
NAOSH 2009
Specific Questions
Routes of exposure
Breadth of toxic effects
Standard first aid
practices
Jessie Callaghan
Canadian Centre for Occupational Health and Safety (CCOHS)
1-800-668-4284 www.ccohs.ca
Evaluating MSDS First Aid Advice
NAOSH 2009
Literature Search
Bibliographic databases
Secondary sources
Data mining
Jessie Callaghan
Canadian Centre for Occupational Health and Safety (CCOHS)
1-800-668-4284 www.ccohs.ca
Evaluating MSDS First Aid Advice
NAOSH 2009
Literature Evaluation
Human vs animal
Controlled study vs
case reports
Quality of study design
Other evidence-based
reviews
Jessie Callaghan
Canadian Centre for Occupational Health and Safety (CCOHS)
1-800-668-4284 www.ccohs.ca
Evaluating MSDS First Aid Advice
NAOSH 2009
Best Answer
Clearly stated conclusions
Supported by best evidence
Jessie Callaghan
Canadian Centre for Occupational Health and Safety (CCOHS)
1-800-668-4284 www.ccohs.ca
Evaluating MSDS First Aid Advice
NAOSH 2009
All chemicals are not
created equal…
Jessie Callaghan
Canadian Centre for Occupational Health and Safety (CCOHS)
1-800-668-4284 www.ccohs.ca
Evaluating MSDS First Aid Advice
NAOSH 2009
Today’s Focus
Present some key
conclusions
Examine some first aid
advice from current
MSDSs
Answer your questions
Jessie Callaghan
Canadian Centre for Occupational Health and Safety (CCOHS)
1-800-668-4284 www.ccohs.ca
Evaluating MSDS First Aid Advice
NAOSH 2009
Emergency Oxygen
Historically, recommended for every
chemical exposure
Eventual concern that this p