ICE EXAM PRACTICE QUESTIONS AND
ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT RATED A+
NEWLY UPDATED 2025
Q: Which items are classified as clinical contact surfaces in a dental or
medical setting?
A: Surfaces such as light switches, handles, x-ray tubeheads, and countertops
are considered clinical contact surfaces because they are frequently touched during
patient care.
Q: What does it mean to reduce harmful microorganisms to a level that is
considered safe?
A: This process is called sterilization, which eliminates or greatly reduces the risk
of disease transmission.
Q: How should a 5.25% sodium hypochlorite (bleach) solution be diluted for
use as a disinfectant?
A: It should be diluted with water in a ratio between 1:1,000 and 1:10,000,
depending on the intended use.
Q: According to CDC guidelines, how long should effective handwashing
take?
A: Proper handwashing should last approximately 2 to 6 minutes, depending on
the level of contamination.
Q: What disinfectant has a high level of effectiveness, minimal odor, and
requires no activation?
A: Chlorine dioxide is a high-level disinfectant that meets these criteria.
, Q: What must be done with reusable instruments or tools used in patient
care?
A: They must be heat sterilized after each use to ensure they are safe for reuse.
Q: How does the EPA classify disinfectants that destroy viruses and fungi but
not bacterial spores?
A: These are considered low-level disinfectants.
What is the purpose of a barrier in infection control? - ANSWER✔✔Disrupts the
transfer of infectious agents.
A good way to reduce cross contamination of dental materials is to use: -
ANSWER✔✔Disposable materials
The most resistant form of known life is a(n): - ANSWER✔✔Anaerobe
Which of the following diseases is easily transmitted in health care settings? -
ANSWER✔✔MRSA
Which of the following items is classified as semi-critical - ANSWER✔✔Rubber
dam forceps
Areosols created from dental handpieces can carry pathogenic organisms that
cause: - ANSWER✔✔Hepatitis a
Which of the following Hepatitis viruses is transmitted by the fecal/oral route? -
ANSWER✔✔Hepatitis B
ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT RATED A+
NEWLY UPDATED 2025
Q: Which items are classified as clinical contact surfaces in a dental or
medical setting?
A: Surfaces such as light switches, handles, x-ray tubeheads, and countertops
are considered clinical contact surfaces because they are frequently touched during
patient care.
Q: What does it mean to reduce harmful microorganisms to a level that is
considered safe?
A: This process is called sterilization, which eliminates or greatly reduces the risk
of disease transmission.
Q: How should a 5.25% sodium hypochlorite (bleach) solution be diluted for
use as a disinfectant?
A: It should be diluted with water in a ratio between 1:1,000 and 1:10,000,
depending on the intended use.
Q: According to CDC guidelines, how long should effective handwashing
take?
A: Proper handwashing should last approximately 2 to 6 minutes, depending on
the level of contamination.
Q: What disinfectant has a high level of effectiveness, minimal odor, and
requires no activation?
A: Chlorine dioxide is a high-level disinfectant that meets these criteria.
, Q: What must be done with reusable instruments or tools used in patient
care?
A: They must be heat sterilized after each use to ensure they are safe for reuse.
Q: How does the EPA classify disinfectants that destroy viruses and fungi but
not bacterial spores?
A: These are considered low-level disinfectants.
What is the purpose of a barrier in infection control? - ANSWER✔✔Disrupts the
transfer of infectious agents.
A good way to reduce cross contamination of dental materials is to use: -
ANSWER✔✔Disposable materials
The most resistant form of known life is a(n): - ANSWER✔✔Anaerobe
Which of the following diseases is easily transmitted in health care settings? -
ANSWER✔✔MRSA
Which of the following items is classified as semi-critical - ANSWER✔✔Rubber
dam forceps
Areosols created from dental handpieces can carry pathogenic organisms that
cause: - ANSWER✔✔Hepatitis a
Which of the following Hepatitis viruses is transmitted by the fecal/oral route? -
ANSWER✔✔Hepatitis B
