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STERILE PROCESSING TECHNICIAN
CERTIFICATION ACTUAL EXAM 2026/2027
COMPLETE ACCURATE EXAM REAL
QUESTIONS WITH WELL ELABORATED
ANSWERS AND RATIONALES. (100%
CORRECT VERIFIED SOLUTIONS)
Question 1
Which of the following is the most critical step in preventing
surgical site infections (SSIs) in the sterile processing
department?
A. Using high-level disinfectants on all instruments
B. Performing effective hand hygiene before handling sterile
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items
C. Sterilizing all items for double the recommended time
D. Wearing two pairs of gloves during assembly
Answer: B – Performing effective hand hygiene before
handling sterile items
Rationale: Hand hygiene is the single most effective measure to
prevent transmission of pathogens. Over-sterilization damages
instruments; not all items require HLD; double gloving is for
direct patient care, not assembly.
Question 2
A biological indicator (BI) for steam sterilization contains which
organism?
A. Bacillus atrophaeus
B. Geobacillus stearothermophilus
C. Mycobacterium terrae
D. Pseudomonas aeruginosa
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Answer: B – Geobacillus stearothermophilus
Rationale: G. stearothermophilus is the standard BI for steam,
hydrogen peroxide, and low-temperature steam formaldehyde
cycles because it is highly resistant to moist heat.
Question 3
What is the recommended exposure time for wrapped goods
in a gravity displacement steam sterilizer at 250°F (121°C)?
A. 3 minutes
B. 10 minutes
C. 30 minutes
D. 60 minutes
Answer: C – 30 minutes
*Rationale: AAMI ST79 recommends 30 minutes at 250°F
(121°C) for gravity displacement sterilizers for wrapped
items. Pre-vacuum cycles require less time (4 minutes at
270°F/132°C).*
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Question 4
A technician notices condensation inside a peel-pack after
sterilization. What should be done?
A. Wipe the moisture with a sterile gauze and release to the
OR
B. Place the pack in a drying cabinet for 2 hours
C. Consider the pack non-sterile and reprocess
D. Use it only for non-critical procedures
Answer: C – Consider the pack non-sterile and reprocess
Rationale: Moisture wicks microorganisms through packaging.
AAMI ST79 states any wet pack must be considered
contaminated and reprocessed.
Question 5
Which of the following is an example of a critical device?
A. Blood pressure cuff
STERILE PROCESSING TECHNICIAN
CERTIFICATION ACTUAL EXAM 2026/2027
COMPLETE ACCURATE EXAM REAL
QUESTIONS WITH WELL ELABORATED
ANSWERS AND RATIONALES. (100%
CORRECT VERIFIED SOLUTIONS)
Question 1
Which of the following is the most critical step in preventing
surgical site infections (SSIs) in the sterile processing
department?
A. Using high-level disinfectants on all instruments
B. Performing effective hand hygiene before handling sterile
,Page 2 of 209
items
C. Sterilizing all items for double the recommended time
D. Wearing two pairs of gloves during assembly
Answer: B – Performing effective hand hygiene before
handling sterile items
Rationale: Hand hygiene is the single most effective measure to
prevent transmission of pathogens. Over-sterilization damages
instruments; not all items require HLD; double gloving is for
direct patient care, not assembly.
Question 2
A biological indicator (BI) for steam sterilization contains which
organism?
A. Bacillus atrophaeus
B. Geobacillus stearothermophilus
C. Mycobacterium terrae
D. Pseudomonas aeruginosa
,Page 3 of 209
Answer: B – Geobacillus stearothermophilus
Rationale: G. stearothermophilus is the standard BI for steam,
hydrogen peroxide, and low-temperature steam formaldehyde
cycles because it is highly resistant to moist heat.
Question 3
What is the recommended exposure time for wrapped goods
in a gravity displacement steam sterilizer at 250°F (121°C)?
A. 3 minutes
B. 10 minutes
C. 30 minutes
D. 60 minutes
Answer: C – 30 minutes
*Rationale: AAMI ST79 recommends 30 minutes at 250°F
(121°C) for gravity displacement sterilizers for wrapped
items. Pre-vacuum cycles require less time (4 minutes at
270°F/132°C).*
, Page 4 of 209
Question 4
A technician notices condensation inside a peel-pack after
sterilization. What should be done?
A. Wipe the moisture with a sterile gauze and release to the
OR
B. Place the pack in a drying cabinet for 2 hours
C. Consider the pack non-sterile and reprocess
D. Use it only for non-critical procedures
Answer: C – Consider the pack non-sterile and reprocess
Rationale: Moisture wicks microorganisms through packaging.
AAMI ST79 states any wet pack must be considered
contaminated and reprocessed.
Question 5
Which of the following is an example of a critical device?
A. Blood pressure cuff
