CDHO 2025 EXAM QUESTIONS AND 100%
CORRECT ANSWERS!!
How does an oral healthcare worker (OCHW) meet the standards of practice set by
CDHO?
1. ensuring all legislative requirements are met
2. ensuring written policies and protocols are in place for the practice environment
3. maintaining facilities, equipment, supplies and technology sufficient to provide a full scope of
practice safely
4. securing appropriate service schedules and records
5. ensuring that current scientifically accepted infection control practices are in place
the ontario human rights code prohibits discrimination based on:
race, colour, creed, gender identity, marital status, ancestry, ethnic origin, sex, gender
expression, family status, place of origin, citizenship, sexual orientation, age, and disability
how is discrimination against disabled clients avoided (according to ontario human rights
code)?
by not using additional and/or unnecessary infection control practices or other measures that not
used for other clients
which 6 elements in the chain of infection need to be present in order for the infection to
spread?
1. infectious agent
2. reservoir
3. portal of exit
4. mode of transmission
5. portal of entry
6. susceptible host
infectious agent
the pathogen that causes the disease e.g bacteria fungi parasites viruses prions
, reservoir
where the pathogen lives (people water food)
portal of exit
the way the infectious agents leave the reservoir (blood, secretions, excretions, skin)
mode of transmission
the way the infectious agents are transferred (direct or indirect contact, droplet, airborne)
portal of entry
the way the infectious agents enter the host (mucous membrane, respiratory, skin,
gastrointestinal tract)
susceptible host
any person at risk
is a dental practice environment a high or low risk environment? why?
it is a low risk environment b/c it is a very controlled and predictable setting compared to a
hospital
which pathogens is the dental practice mostly concerned about?
those transmitted through aerosols
3 main modes of transmission
1. direct transmission (from hands)
2. indirect transmission (from object just as dental scaler)
3. droplet transmission (from coughing or sneezing)
5 principles essential in routine practices
1. risk assessment
2. hand hygiene
3. use of personal protective equipment
CORRECT ANSWERS!!
How does an oral healthcare worker (OCHW) meet the standards of practice set by
CDHO?
1. ensuring all legislative requirements are met
2. ensuring written policies and protocols are in place for the practice environment
3. maintaining facilities, equipment, supplies and technology sufficient to provide a full scope of
practice safely
4. securing appropriate service schedules and records
5. ensuring that current scientifically accepted infection control practices are in place
the ontario human rights code prohibits discrimination based on:
race, colour, creed, gender identity, marital status, ancestry, ethnic origin, sex, gender
expression, family status, place of origin, citizenship, sexual orientation, age, and disability
how is discrimination against disabled clients avoided (according to ontario human rights
code)?
by not using additional and/or unnecessary infection control practices or other measures that not
used for other clients
which 6 elements in the chain of infection need to be present in order for the infection to
spread?
1. infectious agent
2. reservoir
3. portal of exit
4. mode of transmission
5. portal of entry
6. susceptible host
infectious agent
the pathogen that causes the disease e.g bacteria fungi parasites viruses prions
, reservoir
where the pathogen lives (people water food)
portal of exit
the way the infectious agents leave the reservoir (blood, secretions, excretions, skin)
mode of transmission
the way the infectious agents are transferred (direct or indirect contact, droplet, airborne)
portal of entry
the way the infectious agents enter the host (mucous membrane, respiratory, skin,
gastrointestinal tract)
susceptible host
any person at risk
is a dental practice environment a high or low risk environment? why?
it is a low risk environment b/c it is a very controlled and predictable setting compared to a
hospital
which pathogens is the dental practice mostly concerned about?
those transmitted through aerosols
3 main modes of transmission
1. direct transmission (from hands)
2. indirect transmission (from object just as dental scaler)
3. droplet transmission (from coughing or sneezing)
5 principles essential in routine practices
1. risk assessment
2. hand hygiene
3. use of personal protective equipment
