2026/2027
BDOC Maritime Warfare
Certification Exam United States
Naval Academy 2026/2027 Advanced
Study Companion Featuring Exam
Prep Questions and Test Bank
Analysis
Question 1: Sterile Field Integrity
Which of the following items is NOT considered part of a sterile field in the
operating room?
A. Sterile draped instrument table
B. Sterile gloves worn by scrubbed personnel
C. Sterile gown front from chest to waist
D. Gloves of a sterile person who has folded arms
Correct Answer: D. Gloves of a sterile person who has folded arms
Rationale:
Sterile fields in the operating room are defined by strict boundaries. The front of a
sterile gown from chest to waist and properly gloved hands are considered sterile.
However, once a scrubbed person folds their arms, contamination risk increases
because the gloves may come into contact with non-sterile areas such as the axilla or
gown sides. Therefore, such gloves are no longer reliably sterile. The other options
represent maintained sterile zones and are therefore correct components of the sterile
field.
Question 2: Microorganism Presence
The presence of even a single living microorganism on an object means that the object
is:
A. Sterile
B. Clean
C. Contaminated
D. Disinfected
Correct Answer: C. Contaminated
,2026/2027
Rationale:
An object is considered contaminated if any viable microorganism is present,
regardless of quantity. Sterility requires complete absence of all microbial life.
Cleaning and disinfection reduce microbial load but do not guarantee sterility.
Therefore, even one microorganism classifies the item as contaminated.
Question 3: Surgical Mask Principles
Which statement regarding surgical masks is FALSE?
A. Masks should fully cover nose and mouth
B. Masks should be changed between cases
C. Ties may be tied crisscross on top of the head
D. Masks should be discarded once wet or soiled
Correct Answer: C. Ties may be tied crisscross on top of the head
Rationale:
Correct mask technique requires secure tying at the back of the head and neck without
cross-tying in ways that compromise fit or sterility. Crisscross tying on top of the
head is incorrect and may loosen mask security. The other options reflect correct
infection control practices.
Question 4: Draping Technique
During sterile draping of a table, the scrub nurse drapes from _____ to _____,
ensuring gloves are protected by _____.
A. Back, front, cuffing drape edges
B. Front, back, cuffing drape edges
C. Left, right, folding technique
D. Top, bottom, double gloving
Correct Answer: B. Front, back, cuffing drape edges
Rationale:
Proper draping technique begins from the sterile person’s position and proceeds
outward to avoid contamination. Cuffing the drape edges protects sterile gloves from
contact with unsterile surfaces. The other options do not reflect correct aseptic
technique principles.
Question 5: Purpose of Surgical Hand Scrub
The primary purpose of surgical hand scrubbing is to render the skin:
,2026/2027
A. Completely sterile
B. Surgically clean
C. Free of all spores permanently
D. Disinfected for 24 hours
Correct Answer: B. Surgically clean
Rationale:
Surgical scrubbing significantly reduces microbial flora but does not achieve absolute
sterility. Skin cannot be made sterile due to resident flora in deeper layers. The goal is
to achieve a surgically clean state that minimizes infection risk during procedures.
Question 6: Steam Sterilization Limitation
Which of the following items should NOT be considered sterile after steam
sterilization?
A. Wrapped surgical instruments
B. Metal forceps in sealed tray
C. Suction tips attached to tubing
D. Sterile gauze packs
Correct Answer: C. Suction tips attached to tubing
Rationale:
Items with attached tubing or complex internal channels are difficult to sterilize
effectively because steam penetration may be incomplete. Suction assemblies and
similar equipment may retain contamination. The other items allow adequate steam
penetration and are reliably sterilized.
Question 7: Closed Gloving Technique
The preferred method of gloving that reduces contamination risk is:
A. Open gloving
B. Closed gloving
C. Assisted gloving
D. Double open gloving
If a glove is changed during surgery, this method:
A. Can be used safely
B. Cannot be used
Correct Answer: B. Closed; cannot be used
, 2026/2027
Rationale:
Closed gloving is preferred because it minimizes skin exposure and contamination
risk. However, once a scrubbed case is underway and hands are already exposed,
closed gloving cannot be reused for glove replacement; open gloving is required.
Question 8: Sterilizer Loading Error
Which of the following is an incorrect method of loading a pressure steam sterilizer?
A. Placing packs loosely for steam circulation
B. Positioning items to allow airflow
C. Loading liquids first to prevent spillage
D. Avoiding overloading the chamber
Correct Answer: C. Loading liquids first to prevent spillage
Rationale:
Liquids are loaded carefully and separately, not placed first for convenience. Proper
sterilization requires correct load sequencing to ensure steam penetration and safety.
Incorrect loading may compromise sterility and cause hazards.
Question 9: Surgical Site Preparation
If a surgical prep site includes a colostomy or draining sinus that cannot be sealed, it
should be scrubbed:
A. First with sterile technique
B. Last using single-use sponges
C. With alcohol only
D. After draping
Correct Answer: B. Last using single-use sponges
Rationale:
Contaminated areas such as stomas must be cleaned last to avoid spreading
microorganisms to clean areas. Single-use sponges prevent cross-contamination. This
sequence maintains aseptic integrity of the surgical field.
Question 10: OR Environmental Cleaning
Operating room floors should be cleaned at the end of each case using:
A. Dry sweeping and alcohol
B. Detergent germicide and wet vacuuming
BDOC Maritime Warfare
Certification Exam United States
Naval Academy 2026/2027 Advanced
Study Companion Featuring Exam
Prep Questions and Test Bank
Analysis
Question 1: Sterile Field Integrity
Which of the following items is NOT considered part of a sterile field in the
operating room?
A. Sterile draped instrument table
B. Sterile gloves worn by scrubbed personnel
C. Sterile gown front from chest to waist
D. Gloves of a sterile person who has folded arms
Correct Answer: D. Gloves of a sterile person who has folded arms
Rationale:
Sterile fields in the operating room are defined by strict boundaries. The front of a
sterile gown from chest to waist and properly gloved hands are considered sterile.
However, once a scrubbed person folds their arms, contamination risk increases
because the gloves may come into contact with non-sterile areas such as the axilla or
gown sides. Therefore, such gloves are no longer reliably sterile. The other options
represent maintained sterile zones and are therefore correct components of the sterile
field.
Question 2: Microorganism Presence
The presence of even a single living microorganism on an object means that the object
is:
A. Sterile
B. Clean
C. Contaminated
D. Disinfected
Correct Answer: C. Contaminated
,2026/2027
Rationale:
An object is considered contaminated if any viable microorganism is present,
regardless of quantity. Sterility requires complete absence of all microbial life.
Cleaning and disinfection reduce microbial load but do not guarantee sterility.
Therefore, even one microorganism classifies the item as contaminated.
Question 3: Surgical Mask Principles
Which statement regarding surgical masks is FALSE?
A. Masks should fully cover nose and mouth
B. Masks should be changed between cases
C. Ties may be tied crisscross on top of the head
D. Masks should be discarded once wet or soiled
Correct Answer: C. Ties may be tied crisscross on top of the head
Rationale:
Correct mask technique requires secure tying at the back of the head and neck without
cross-tying in ways that compromise fit or sterility. Crisscross tying on top of the
head is incorrect and may loosen mask security. The other options reflect correct
infection control practices.
Question 4: Draping Technique
During sterile draping of a table, the scrub nurse drapes from _____ to _____,
ensuring gloves are protected by _____.
A. Back, front, cuffing drape edges
B. Front, back, cuffing drape edges
C. Left, right, folding technique
D. Top, bottom, double gloving
Correct Answer: B. Front, back, cuffing drape edges
Rationale:
Proper draping technique begins from the sterile person’s position and proceeds
outward to avoid contamination. Cuffing the drape edges protects sterile gloves from
contact with unsterile surfaces. The other options do not reflect correct aseptic
technique principles.
Question 5: Purpose of Surgical Hand Scrub
The primary purpose of surgical hand scrubbing is to render the skin:
,2026/2027
A. Completely sterile
B. Surgically clean
C. Free of all spores permanently
D. Disinfected for 24 hours
Correct Answer: B. Surgically clean
Rationale:
Surgical scrubbing significantly reduces microbial flora but does not achieve absolute
sterility. Skin cannot be made sterile due to resident flora in deeper layers. The goal is
to achieve a surgically clean state that minimizes infection risk during procedures.
Question 6: Steam Sterilization Limitation
Which of the following items should NOT be considered sterile after steam
sterilization?
A. Wrapped surgical instruments
B. Metal forceps in sealed tray
C. Suction tips attached to tubing
D. Sterile gauze packs
Correct Answer: C. Suction tips attached to tubing
Rationale:
Items with attached tubing or complex internal channels are difficult to sterilize
effectively because steam penetration may be incomplete. Suction assemblies and
similar equipment may retain contamination. The other items allow adequate steam
penetration and are reliably sterilized.
Question 7: Closed Gloving Technique
The preferred method of gloving that reduces contamination risk is:
A. Open gloving
B. Closed gloving
C. Assisted gloving
D. Double open gloving
If a glove is changed during surgery, this method:
A. Can be used safely
B. Cannot be used
Correct Answer: B. Closed; cannot be used
, 2026/2027
Rationale:
Closed gloving is preferred because it minimizes skin exposure and contamination
risk. However, once a scrubbed case is underway and hands are already exposed,
closed gloving cannot be reused for glove replacement; open gloving is required.
Question 8: Sterilizer Loading Error
Which of the following is an incorrect method of loading a pressure steam sterilizer?
A. Placing packs loosely for steam circulation
B. Positioning items to allow airflow
C. Loading liquids first to prevent spillage
D. Avoiding overloading the chamber
Correct Answer: C. Loading liquids first to prevent spillage
Rationale:
Liquids are loaded carefully and separately, not placed first for convenience. Proper
sterilization requires correct load sequencing to ensure steam penetration and safety.
Incorrect loading may compromise sterility and cause hazards.
Question 9: Surgical Site Preparation
If a surgical prep site includes a colostomy or draining sinus that cannot be sealed, it
should be scrubbed:
A. First with sterile technique
B. Last using single-use sponges
C. With alcohol only
D. After draping
Correct Answer: B. Last using single-use sponges
Rationale:
Contaminated areas such as stomas must be cleaned last to avoid spreading
microorganisms to clean areas. Single-use sponges prevent cross-contamination. This
sequence maintains aseptic integrity of the surgical field.
Question 10: OR Environmental Cleaning
Operating room floors should be cleaned at the end of each case using:
A. Dry sweeping and alcohol
B. Detergent germicide and wet vacuuming
