Page 1 of 159
CBSPD PRACTICE EXAM 2(BASICS OF
FLEXIBLE ENDOSCOPE
REPROCESSING)2026/27 PERIOD WITH
MULTIPLE QUESTIONS WHICH ARE
CORRECTLY ANSWERED AND ALREADY
GRADED A+
1. When should pre-cleaning of a flexible endoscope begin?
A) Within 30 minutes of use
B) Immediately after removing the endoscope from the patient
C) At the end of the procedure list
D) After leak testing
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Correct Answer: B
Rationale: Pre-cleaning must begin immediately at the
bedside to prevent drying of bioburden, which makes removal
difficult.
2. What solution is typically used for the initial bedside
wipe-down of the endoscope exterior?
A) 70% isopropyl alcohol
B) Sterile water
C) Enzymatic detergent solution
D) 2% glutaraldehyde
Correct Answer: C
Rationale: An enzymatic detergent helps break down organic
material (blood, protein) and should be used for the exterior
wipe.
3. After pre-cleaning at the bedside, how should the
endoscope be transported to the reprocessing area?
A) Coiled loosely in a clean, covered container
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B) Coiled tightly in the transport cart
C) Hung vertically without any cover
D) Submerged in disinfectant during transport
Correct Answer: A
Rationale: Coil loosely in a covered, clean container to
prevent damage and contamination of the environment.
4. Scenario: A nurse finishes a colonoscopy and places the
scope on a towel on a cart for 20 minutes before transport.
What is the risk?
A) No risk, 20 minutes is acceptable
B) Biofilm formation due to drying of contaminants
C) Only risk is to the cart
D) Risk of corrosion from towel fibers
Correct Answer: B
Rationale: Dried bioburden promotes biofilm formation, which
is resistant to disinfection.
, Page 4 of 159
5. What is the first step in bedside pre-cleaning?
A) Leak testing
B) Flushing the channels with enzymatic detergent
C) Wiping the insertion tube with alcohol
D) Drying the exterior with a lint-free cloth
Correct Answer: B
Rationale: Flushing channels with enzymatic detergent removes
luminal debris immediately.
6. Which of the following should be used to wipe the
external surface during pre-cleaning?
A) Paper towel with saline
B) Lint-free cloth with enzymatic detergent
C) Sponge with bleach
D) Gauze with alcohol
Correct Answer: B
Rationale: Lint-free cloth prevents fiber shedding; enzymatic
detergent breaks down organic soil.
CBSPD PRACTICE EXAM 2(BASICS OF
FLEXIBLE ENDOSCOPE
REPROCESSING)2026/27 PERIOD WITH
MULTIPLE QUESTIONS WHICH ARE
CORRECTLY ANSWERED AND ALREADY
GRADED A+
1. When should pre-cleaning of a flexible endoscope begin?
A) Within 30 minutes of use
B) Immediately after removing the endoscope from the patient
C) At the end of the procedure list
D) After leak testing
,Page 2 of 159
Correct Answer: B
Rationale: Pre-cleaning must begin immediately at the
bedside to prevent drying of bioburden, which makes removal
difficult.
2. What solution is typically used for the initial bedside
wipe-down of the endoscope exterior?
A) 70% isopropyl alcohol
B) Sterile water
C) Enzymatic detergent solution
D) 2% glutaraldehyde
Correct Answer: C
Rationale: An enzymatic detergent helps break down organic
material (blood, protein) and should be used for the exterior
wipe.
3. After pre-cleaning at the bedside, how should the
endoscope be transported to the reprocessing area?
A) Coiled loosely in a clean, covered container
,Page 3 of 159
B) Coiled tightly in the transport cart
C) Hung vertically without any cover
D) Submerged in disinfectant during transport
Correct Answer: A
Rationale: Coil loosely in a covered, clean container to
prevent damage and contamination of the environment.
4. Scenario: A nurse finishes a colonoscopy and places the
scope on a towel on a cart for 20 minutes before transport.
What is the risk?
A) No risk, 20 minutes is acceptable
B) Biofilm formation due to drying of contaminants
C) Only risk is to the cart
D) Risk of corrosion from towel fibers
Correct Answer: B
Rationale: Dried bioburden promotes biofilm formation, which
is resistant to disinfection.
, Page 4 of 159
5. What is the first step in bedside pre-cleaning?
A) Leak testing
B) Flushing the channels with enzymatic detergent
C) Wiping the insertion tube with alcohol
D) Drying the exterior with a lint-free cloth
Correct Answer: B
Rationale: Flushing channels with enzymatic detergent removes
luminal debris immediately.
6. Which of the following should be used to wipe the
external surface during pre-cleaning?
A) Paper towel with saline
B) Lint-free cloth with enzymatic detergent
C) Sponge with bleach
D) Gauze with alcohol
Correct Answer: B
Rationale: Lint-free cloth prevents fiber shedding; enzymatic
detergent breaks down organic soil.
