Infection Control CDHO Exam UPDATED
ACTUAL QUESTIONS AND CORRECT
ANSWERS
How does an oral healthcare worker (OCHW) meet the standards of practice set by CDHO? -
CORRECT ANSWER 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: - CORRECT
ANSWER 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)? - CORRECT ANSWER 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? - CORRECT ANSWER 1. infectious agent
2. reservoir
3. portal of exit
4. mode of transmission
5. portal of entry
6. susceptible host
infectious agent - CORRECT ANSWER the pathogen that causes the disease e.g
bacteria fungi parasites viruses prions
, reservoir - CORRECT ANSWER where the pathogen lives (people water food)
portal of exit - CORRECT ANSWER the way the infectious agents leave the reservoir
(blood, secretions, excretions, skin)
mode of transmission - CORRECT ANSWER the way the infectious agents are
transferred (direct or indirect contact, droplet, airborne)
portal of entry - CORRECT ANSWER the way the infectious agents enter the host
(mucous membrane, respiratory, skin, gastrointestinal tract)
susceptible host - CORRECT ANSWER any person at risk
is a dental practice environment a high or low risk environment? why? - CORRECT
ANSWER 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? - CORRECT
ANSWER those transmitted through aerosols
3 main modes of transmission - CORRECT ANSWER 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 - CORRECT ANSWER 1. risk assessment
2. hand hygiene
3. use of personal protective equipment
4. environmental controls
ACTUAL QUESTIONS AND CORRECT
ANSWERS
How does an oral healthcare worker (OCHW) meet the standards of practice set by CDHO? -
CORRECT ANSWER 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: - CORRECT
ANSWER 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)? - CORRECT ANSWER 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? - CORRECT ANSWER 1. infectious agent
2. reservoir
3. portal of exit
4. mode of transmission
5. portal of entry
6. susceptible host
infectious agent - CORRECT ANSWER the pathogen that causes the disease e.g
bacteria fungi parasites viruses prions
, reservoir - CORRECT ANSWER where the pathogen lives (people water food)
portal of exit - CORRECT ANSWER the way the infectious agents leave the reservoir
(blood, secretions, excretions, skin)
mode of transmission - CORRECT ANSWER the way the infectious agents are
transferred (direct or indirect contact, droplet, airborne)
portal of entry - CORRECT ANSWER the way the infectious agents enter the host
(mucous membrane, respiratory, skin, gastrointestinal tract)
susceptible host - CORRECT ANSWER any person at risk
is a dental practice environment a high or low risk environment? why? - CORRECT
ANSWER 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? - CORRECT
ANSWER those transmitted through aerosols
3 main modes of transmission - CORRECT ANSWER 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 - CORRECT ANSWER 1. risk assessment
2. hand hygiene
3. use of personal protective equipment
4. environmental controls
