IOWA DENTAL BOARD INFECTION CONTROL
STUDY GUIDE EXAM Questions and Answers |
Fully Solved Edition
Question 1
How can microorganisms enter a person's body?
A. Only through broken skin
B. Ingest, splatter, aerosol, direct or indirect contact
C. Only through inhalation
D. Only through blood transfusion
ANSWER: B. Ingest, splatter, aerosol, direct or indirect contact.
RATIONALE: Microorganisms can enter the body through multiple routes including
ingestion, splatter, aerosol, direct contact (touching), and indirect contact (via contaminated
instruments or surfaces). Understanding these routes is essential for infection control in
dentistry.
Question 2
How often should the patient's medical history be updated?
A. Every 6 months
B. Every year
C. Every visit
D. Only when the patient reports a change
ANSWER: C. Every visit.
RATIONALE: The patient's medical history should be updated at every visit to ensure the
dental team is aware of any new medical conditions, medications, or allergies that could
affect dental treatment.
,Question 3
What is the difference between disinfection and sterilization?
A. Disinfection kills everything including spores; sterilization kills some microorganisms
B. Disinfection is chemical killing of SOME microorganisms; sterilization is chemical killing of
EVERYTHING including spores
C. There is no difference
D. Disinfection is used for instruments; sterilization is used for surfaces
ANSWER: B. Disinfection is chemical killing of SOME microorganisms; sterilization is
chemical killing of EVERYTHING including spores.
RATIONALE: Disinfection kills most pathogenic microorganisms but not necessarily all
spores. Sterilization eliminates ALL microorganisms, including bacterial spores, which are
the most resistant forms of life.
Question 4
Is a TB test required for dental health care personnel?
A. Yes, annually for all personnel
B. Yes, every 2 years
C. No, unless the work requires it
D. Yes, only for new employees
ANSWER: C. No, unless the work requires it.
RATIONALE: TB testing is not universally required for all dental healthcare personnel. It is
only required if the specific work environment or employer policy mandates it, or if there is
a known exposure risk.
Question 5
Why is it important in dentistry to have an understanding of spores?
,A. Spores are the easiest to kill
B. Spores are the hardest to kill
C. Spores are not relevant to dentistry
D. Spores are only found in water
ANSWER: B. Spores are the hardest to kill.
RATIONALE: Bacterial spores are the most resistant form of microorganisms. Understanding
spores is critical because sterilization processes must be capable of killing spores to ensure
complete elimination of all microorganisms.
Question 6
What is recommended in the case of a positive spore test?
A. Continue using the sterilizer as normal
B. Stop use of sterilizer, put out of service, recheck, recertify it, load and reuse
C. Ignore the result and continue use
D. Only sterilize instruments for longer time
ANSWER: B. Stop use of sterilizer, put out of service, recheck, recertify it, load and reuse.
RATIONALE: A positive spore test indicates that the sterilizer is not effectively killing all
microorganisms. The sterilizer should be taken out of service, the cause investigated, and
the sterilizer recertified before reuse.
Question 7
What does the term standard precautions mean?
A. Only for patients with known infections
B. All patients
C. Only for surgical procedures
D. Only for patients with open wounds
ANSWER: B. All patients.
RATIONALE: Standard precautions means treating all patients as potentially infectious,
, regardless of their known diagnosis. This approach ensures consistent infection control
practices for all patient care.
Question 8
Standard Precautions include what practices?
A. Only hand washing
B. All PPE (Personal Protective Equipment)
C. Only glove use
D. Only sterilization
ANSWER: B. All PPE (Personal Protective Equipment).
RATIONALE: Standard precautions include the use of all personal protective equipment
(PPE) such as gloves, masks, protective eyewear, and gowns, as well as hand hygiene and
safe injection practices.
Question 9
What should be done if there is exposure to a bloodborne pathogen?
A. Ignore it if it is a small exposure
B. Report it and wash the area
C. Only wash the area
D. Only report it
ANSWER: B. Report it and wash the area.
RATIONALE: Immediate action after exposure includes washing the exposed area with soap
and water and reporting the exposure to the appropriate supervisor or designated officer
for follow-up and post-exposure prophylaxis if indicated.
STUDY GUIDE EXAM Questions and Answers |
Fully Solved Edition
Question 1
How can microorganisms enter a person's body?
A. Only through broken skin
B. Ingest, splatter, aerosol, direct or indirect contact
C. Only through inhalation
D. Only through blood transfusion
ANSWER: B. Ingest, splatter, aerosol, direct or indirect contact.
RATIONALE: Microorganisms can enter the body through multiple routes including
ingestion, splatter, aerosol, direct contact (touching), and indirect contact (via contaminated
instruments or surfaces). Understanding these routes is essential for infection control in
dentistry.
Question 2
How often should the patient's medical history be updated?
A. Every 6 months
B. Every year
C. Every visit
D. Only when the patient reports a change
ANSWER: C. Every visit.
RATIONALE: The patient's medical history should be updated at every visit to ensure the
dental team is aware of any new medical conditions, medications, or allergies that could
affect dental treatment.
,Question 3
What is the difference between disinfection and sterilization?
A. Disinfection kills everything including spores; sterilization kills some microorganisms
B. Disinfection is chemical killing of SOME microorganisms; sterilization is chemical killing of
EVERYTHING including spores
C. There is no difference
D. Disinfection is used for instruments; sterilization is used for surfaces
ANSWER: B. Disinfection is chemical killing of SOME microorganisms; sterilization is
chemical killing of EVERYTHING including spores.
RATIONALE: Disinfection kills most pathogenic microorganisms but not necessarily all
spores. Sterilization eliminates ALL microorganisms, including bacterial spores, which are
the most resistant forms of life.
Question 4
Is a TB test required for dental health care personnel?
A. Yes, annually for all personnel
B. Yes, every 2 years
C. No, unless the work requires it
D. Yes, only for new employees
ANSWER: C. No, unless the work requires it.
RATIONALE: TB testing is not universally required for all dental healthcare personnel. It is
only required if the specific work environment or employer policy mandates it, or if there is
a known exposure risk.
Question 5
Why is it important in dentistry to have an understanding of spores?
,A. Spores are the easiest to kill
B. Spores are the hardest to kill
C. Spores are not relevant to dentistry
D. Spores are only found in water
ANSWER: B. Spores are the hardest to kill.
RATIONALE: Bacterial spores are the most resistant form of microorganisms. Understanding
spores is critical because sterilization processes must be capable of killing spores to ensure
complete elimination of all microorganisms.
Question 6
What is recommended in the case of a positive spore test?
A. Continue using the sterilizer as normal
B. Stop use of sterilizer, put out of service, recheck, recertify it, load and reuse
C. Ignore the result and continue use
D. Only sterilize instruments for longer time
ANSWER: B. Stop use of sterilizer, put out of service, recheck, recertify it, load and reuse.
RATIONALE: A positive spore test indicates that the sterilizer is not effectively killing all
microorganisms. The sterilizer should be taken out of service, the cause investigated, and
the sterilizer recertified before reuse.
Question 7
What does the term standard precautions mean?
A. Only for patients with known infections
B. All patients
C. Only for surgical procedures
D. Only for patients with open wounds
ANSWER: B. All patients.
RATIONALE: Standard precautions means treating all patients as potentially infectious,
, regardless of their known diagnosis. This approach ensures consistent infection control
practices for all patient care.
Question 8
Standard Precautions include what practices?
A. Only hand washing
B. All PPE (Personal Protective Equipment)
C. Only glove use
D. Only sterilization
ANSWER: B. All PPE (Personal Protective Equipment).
RATIONALE: Standard precautions include the use of all personal protective equipment
(PPE) such as gloves, masks, protective eyewear, and gowns, as well as hand hygiene and
safe injection practices.
Question 9
What should be done if there is exposure to a bloodborne pathogen?
A. Ignore it if it is a small exposure
B. Report it and wash the area
C. Only wash the area
D. Only report it
ANSWER: B. Report it and wash the area.
RATIONALE: Immediate action after exposure includes washing the exposed area with soap
and water and reporting the exposure to the appropriate supervisor or designated officer
for follow-up and post-exposure prophylaxis if indicated.
