IAHCSMM Endoscopic Quiz Review| 305
QUESTIONS| WITH COMPLETE SOLUTIONS
Course
IAHCSMM
1. What is the primary purpose of minimally invasive surgery (MIS)?
Answer:
Minimally Invasive Surgery (MIS) reduces surgical trauma by using small incisions and
specialized instruments, leading to:
Faster recovery time
Less postoperative pain
Reduced risk of infection
Minimal scarring
2. How should endoscopes be pre-cleaned after use?
Answer:
Immediately after use, endoscopes should be pre-cleaned at the point of use by:
Wiping the exterior with an enzymatic solution
Flushing lumens with water and enzymatic detergent
Keeping the scope moist to prevent biofilm formation
3. Why is leak testing critical for flexible endoscopes?
Answer:
Leak testing helps detect damage to the internal channels and prevents fluid invasion, which can
cause:
Internal corrosion
Cross-contamination
Expensive repairs
Manual or automated leak testing should be performed before manual cleaning.
4. What is the correct temperature for high-level disinfection (HLD) with glutaraldehyde?
,Answer:
Most glutaraldehyde-based high-level disinfectants require a minimum temperature of 25°C
(77°F) to be effective. Always follow the manufacturer's instructions for concentration and
exposure time.
5. What is the minimum recommended exposure time for high-level disinfection using OPA
(Ortho-Phthalaldehyde)?
Answer:
OPA requires an immersion time of 12 minutes at 20°C (68°F) to achieve high-level
disinfection. It is often preferred over glutaraldehyde because:
It has a shorter exposure time
It does not require activation
It has a lower odor
6. How should endoscopes be stored after reprocessing?
Answer:
Endoscopes should be stored in a vertically hung position in a well-ventilated cabinet to:
Allow residual moisture to drain
Prevent contamination
Extend the lifespan of the device
Closed storage cabinets with HEPA-filtered airflow are ideal.
7. What type of water should be used for the final rinse of an endoscope?
Answer:
Sterile or filtered water should be used for the final rinse to:
Prevent recontamination from tap water
Reduce the risk of biofilm formation
Ensure the removal of residual chemicals
8. What is the main risk of using damaged endoscopes?
,Answer:
Damaged endoscopes pose serious risks, including:
Cross-contamination between patients
Poor image quality affecting diagnosis
Fluid invasion leading to internal damage
Endoscopes should be inspected carefully before and after each use.
9. What personal protective equipment (PPE) should be worn when handling contaminated
endoscopes?
Answer:
The following PPE is required:
Gloves (to protect hands from contamination)
Gown (to prevent fluid exposure)
Face shield or mask with goggles (to protect from splashes)
Proper PPE helps prevent exposure to infectious materials.
10. Why should enzymatic cleaners be used for endoscope cleaning?
Answer:
Enzymatic cleaners break down organic matter, such as:
Blood
Mucus
Tissue debris
They enhance cleaning effectiveness by loosening contaminants before manual or automated
cleaning.
11. What is biofilm, and why is it a concern in endoscope reprocessing?
Answer:
Biofilm is a layer of microorganisms that attach to surfaces and produce a protective matrix. It is
a concern because:
It resists disinfectants and sterilants
, It can lead to cross-contamination
It is difficult to remove once formed
Proper pre-cleaning and enzymatic detergents help prevent biofilm formation.
12. What is the purpose of an enzymatic soak during manual endoscope cleaning?
Answer:
An enzymatic soak helps:
Break down organic debris (blood, mucus, proteins)
Loosen contaminants for easier removal
Reduce the risk of biofilm formation
Endoscopes should be fully submerged for the recommended time per manufacturer guidelines.
13. How often should cleaning brushes used for endoscopes be replaced?
Answer:
Cleaning brushes should be:
Single-use when possible
Replaced after each use if reusable
Inspected for wear and damage before use
Using damaged brushes can lead to incomplete cleaning and cross-contamination.
14. Why is thorough drying of endoscopes after high-level disinfection important?
Answer:
Residual moisture promotes bacterial growth. Proper drying:
Prevents microbial contamination
Extends the lifespan of the endoscope
Ensures effective storage
A medical-grade, lint-free cloth and forced air are recommended for drying.
QUESTIONS| WITH COMPLETE SOLUTIONS
Course
IAHCSMM
1. What is the primary purpose of minimally invasive surgery (MIS)?
Answer:
Minimally Invasive Surgery (MIS) reduces surgical trauma by using small incisions and
specialized instruments, leading to:
Faster recovery time
Less postoperative pain
Reduced risk of infection
Minimal scarring
2. How should endoscopes be pre-cleaned after use?
Answer:
Immediately after use, endoscopes should be pre-cleaned at the point of use by:
Wiping the exterior with an enzymatic solution
Flushing lumens with water and enzymatic detergent
Keeping the scope moist to prevent biofilm formation
3. Why is leak testing critical for flexible endoscopes?
Answer:
Leak testing helps detect damage to the internal channels and prevents fluid invasion, which can
cause:
Internal corrosion
Cross-contamination
Expensive repairs
Manual or automated leak testing should be performed before manual cleaning.
4. What is the correct temperature for high-level disinfection (HLD) with glutaraldehyde?
,Answer:
Most glutaraldehyde-based high-level disinfectants require a minimum temperature of 25°C
(77°F) to be effective. Always follow the manufacturer's instructions for concentration and
exposure time.
5. What is the minimum recommended exposure time for high-level disinfection using OPA
(Ortho-Phthalaldehyde)?
Answer:
OPA requires an immersion time of 12 minutes at 20°C (68°F) to achieve high-level
disinfection. It is often preferred over glutaraldehyde because:
It has a shorter exposure time
It does not require activation
It has a lower odor
6. How should endoscopes be stored after reprocessing?
Answer:
Endoscopes should be stored in a vertically hung position in a well-ventilated cabinet to:
Allow residual moisture to drain
Prevent contamination
Extend the lifespan of the device
Closed storage cabinets with HEPA-filtered airflow are ideal.
7. What type of water should be used for the final rinse of an endoscope?
Answer:
Sterile or filtered water should be used for the final rinse to:
Prevent recontamination from tap water
Reduce the risk of biofilm formation
Ensure the removal of residual chemicals
8. What is the main risk of using damaged endoscopes?
,Answer:
Damaged endoscopes pose serious risks, including:
Cross-contamination between patients
Poor image quality affecting diagnosis
Fluid invasion leading to internal damage
Endoscopes should be inspected carefully before and after each use.
9. What personal protective equipment (PPE) should be worn when handling contaminated
endoscopes?
Answer:
The following PPE is required:
Gloves (to protect hands from contamination)
Gown (to prevent fluid exposure)
Face shield or mask with goggles (to protect from splashes)
Proper PPE helps prevent exposure to infectious materials.
10. Why should enzymatic cleaners be used for endoscope cleaning?
Answer:
Enzymatic cleaners break down organic matter, such as:
Blood
Mucus
Tissue debris
They enhance cleaning effectiveness by loosening contaminants before manual or automated
cleaning.
11. What is biofilm, and why is it a concern in endoscope reprocessing?
Answer:
Biofilm is a layer of microorganisms that attach to surfaces and produce a protective matrix. It is
a concern because:
It resists disinfectants and sterilants
, It can lead to cross-contamination
It is difficult to remove once formed
Proper pre-cleaning and enzymatic detergents help prevent biofilm formation.
12. What is the purpose of an enzymatic soak during manual endoscope cleaning?
Answer:
An enzymatic soak helps:
Break down organic debris (blood, mucus, proteins)
Loosen contaminants for easier removal
Reduce the risk of biofilm formation
Endoscopes should be fully submerged for the recommended time per manufacturer guidelines.
13. How often should cleaning brushes used for endoscopes be replaced?
Answer:
Cleaning brushes should be:
Single-use when possible
Replaced after each use if reusable
Inspected for wear and damage before use
Using damaged brushes can lead to incomplete cleaning and cross-contamination.
14. Why is thorough drying of endoscopes after high-level disinfection important?
Answer:
Residual moisture promotes bacterial growth. Proper drying:
Prevents microbial contamination
Extends the lifespan of the endoscope
Ensures effective storage
A medical-grade, lint-free cloth and forced air are recommended for drying.
