Infection Control Post-Test – Actual Exam
2025 (Questions & Detailed Answers) –
Complete Exam Material
Introduction:
This document contains the full set of Infection Control Post-
Test examination questions for 2025, including detailed
rationales for every answer. It covers core topics such as hand
hygiene, sterile technique, PPE, asepsis principles,
transmission-based precautions, and chain-of-infection
concepts. The material provides comprehensive explanations
suited for exam preparation and competency reinforcement.
Exam Questions and Answers:
Why are the hands rinsed with the fingertips held lower than
the wrist?
A.) Water flows from the least to the most contaminated area,
rinsing microorganisms into the sink.
B.) To keep the sleeves from getting wet.
C.) It is necessary to ensure that all surfaces of the hands,
including under the nails, are cleansed.
,D.) To loosen and remove dirt and bacteria. -Answer:-A.)
Water flows from the least to the most contaminated area,
rinsing microorganisms into the sink.
The hands and forearms are kept lower than the elbows, and
the fingertips are kept lower than the wrists during washing to
promote the flow of water from the least to the most
contaminated area, rinsing microorganisms into the sink. Use
of an adequate amount of detergent and vigorous lathering and
rubbing of the hands together for an appropriate length of
time (15 seconds) ensures that all surfaces of the hands and
fingers are covered and cleansed. Friction and rubbing
mechanically loosen and remove dirt and transient bacteria.
What is the best nursing practice to reduce the potential
transmission of microorganisms within the health care
setting?
A.) Bagging all linen.
B.) Performing hand hygiene.
C.) Keeping catheter bags empty.
D.) Wearing gloves. -Answer:-B.) Performing hand hygiene.
,The best practice to prevent the transmission of
microorganisms for all caregivers is performing hand hygiene
before and after patient contact.
Under which circumstance(s) should hand washing be
repeated? (Select all that apply.)
A.) Hands touch the sink during hand washing.
B.) Areas under fingernails remain soiled.
C.) Cracked areas are noted on the nurse's hands.
D.) Hands are free of visible soiling.
E.) Hands are lowered below waist level. -Answer:-A.) Hands
touch the sink during hand washing.
B.) Areas under fingernails remain soiled.
The inside of the sink is a contaminated area. If the hands
touch the sink during hand washing, the hand washing
procedure should be repeated. If the hands or areas under
fingernails remain soiled, repeat hand washing with soap and
water. If the nurse's hands are cracked, rinse and dry hands
thoroughly. Hand washing does not require repeating as this
would only dry out the skin more. Hands lowered below the
, waist do not require repeated hand washing as this skill is
utilizing clean technique, not sterile technique.
When is it acceptable to use antiseptic hand rub rather than
soap and water? (Select all that apply.)
A.) After adjusting a nasal cannula on a patient.
B.) After removing gloves after changing a wound dressing.
C.) When the nurse's hands are cracked from frequent hand
hygiene.
D.) After moving patient's belongings on the bedside table.
E.) After the patient develops a skin tear and blood is on the
nurse's hand.
F.) When the patient has been diagnosed with C. difficile. -
Answer:-A.) After adjusting a nasal cannula on a patient.
B.) After removing gloves after changing a wound dressing.
D.) After moving patient's belongings on the bedside table.
When hands are visibly dirty or contaminated with
proteinaceous material or visibly soiled with blood or other
body fluids, you need to wash your hands with soap and water.
If hands are not visibly soiled, use an alcohol-based hand rub
2025 (Questions & Detailed Answers) –
Complete Exam Material
Introduction:
This document contains the full set of Infection Control Post-
Test examination questions for 2025, including detailed
rationales for every answer. It covers core topics such as hand
hygiene, sterile technique, PPE, asepsis principles,
transmission-based precautions, and chain-of-infection
concepts. The material provides comprehensive explanations
suited for exam preparation and competency reinforcement.
Exam Questions and Answers:
Why are the hands rinsed with the fingertips held lower than
the wrist?
A.) Water flows from the least to the most contaminated area,
rinsing microorganisms into the sink.
B.) To keep the sleeves from getting wet.
C.) It is necessary to ensure that all surfaces of the hands,
including under the nails, are cleansed.
,D.) To loosen and remove dirt and bacteria. -Answer:-A.)
Water flows from the least to the most contaminated area,
rinsing microorganisms into the sink.
The hands and forearms are kept lower than the elbows, and
the fingertips are kept lower than the wrists during washing to
promote the flow of water from the least to the most
contaminated area, rinsing microorganisms into the sink. Use
of an adequate amount of detergent and vigorous lathering and
rubbing of the hands together for an appropriate length of
time (15 seconds) ensures that all surfaces of the hands and
fingers are covered and cleansed. Friction and rubbing
mechanically loosen and remove dirt and transient bacteria.
What is the best nursing practice to reduce the potential
transmission of microorganisms within the health care
setting?
A.) Bagging all linen.
B.) Performing hand hygiene.
C.) Keeping catheter bags empty.
D.) Wearing gloves. -Answer:-B.) Performing hand hygiene.
,The best practice to prevent the transmission of
microorganisms for all caregivers is performing hand hygiene
before and after patient contact.
Under which circumstance(s) should hand washing be
repeated? (Select all that apply.)
A.) Hands touch the sink during hand washing.
B.) Areas under fingernails remain soiled.
C.) Cracked areas are noted on the nurse's hands.
D.) Hands are free of visible soiling.
E.) Hands are lowered below waist level. -Answer:-A.) Hands
touch the sink during hand washing.
B.) Areas under fingernails remain soiled.
The inside of the sink is a contaminated area. If the hands
touch the sink during hand washing, the hand washing
procedure should be repeated. If the hands or areas under
fingernails remain soiled, repeat hand washing with soap and
water. If the nurse's hands are cracked, rinse and dry hands
thoroughly. Hand washing does not require repeating as this
would only dry out the skin more. Hands lowered below the
, waist do not require repeated hand washing as this skill is
utilizing clean technique, not sterile technique.
When is it acceptable to use antiseptic hand rub rather than
soap and water? (Select all that apply.)
A.) After adjusting a nasal cannula on a patient.
B.) After removing gloves after changing a wound dressing.
C.) When the nurse's hands are cracked from frequent hand
hygiene.
D.) After moving patient's belongings on the bedside table.
E.) After the patient develops a skin tear and blood is on the
nurse's hand.
F.) When the patient has been diagnosed with C. difficile. -
Answer:-A.) After adjusting a nasal cannula on a patient.
B.) After removing gloves after changing a wound dressing.
D.) After moving patient's belongings on the bedside table.
When hands are visibly dirty or contaminated with
proteinaceous material or visibly soiled with blood or other
body fluids, you need to wash your hands with soap and water.
If hands are not visibly soiled, use an alcohol-based hand rub
