Page |1
BCOT WEEK 3 PRACTICE EXAM Questions with Answers &
Rationales
1. Which oxygen delivery device provides the highest
concentration of oxygen?
A. Nasal cannula
B. Simple face mask
C. Non-rebreather mask
D. Venturi mask
Answer: C
Rationale: A non-rebreather mask can deliver up to 90–100%
oxygen.
2. A client is on a nasal cannula at 2 L/min. The approximate
oxygen concentration delivered is:
A. 24–28%
B. 40–60%
C. 60–80%
D. 90–100%
Answer: A
Rationale: Nasal cannula at 2 L/min delivers about 24–28%
FiO2.
, Page |2
3. A nurse is preparing a sterile field. Which action
contaminates the field?
A. Keeping the sterile field above waist level
B. Opening sterile packages away from the body
C. Reaching across the sterile field
D. Using sterile gloves to touch sterile items
Answer: C
Rationale: Reaching across a sterile field causes contamination.
4. Which of the following is the correct way to remove a soiled
dressing?
A. Use clean gloves and remove the dressing from clean to dirty
B. Use sterile gloves and remove the dressing from dirty to
clean
C. Use bare hands
D. Leave the old dressing in place and cover with a new one
Answer: A
Rationale: Use clean gloves; remove from clean to dirty to
minimize contamination.
5. A client has a wound with purulent drainage. The nurse
should:
A. Clean the wound and notify the provider for possible
, Page |3
infection
B. Apply a dry dressing only
C. Ignore the drainage
D. Use room deodorizer only
Answer: A
Rationale: Purulent drainage suggests infection; clean and
notify.
6. A client with a wound has a foul odor. This may indicate:
A. Infection or necrotic tissue
B. Normal healing
C. Dehydration
D. No concern
Answer: A
Rationale: Foul odor often indicates infection or necrosis.
7. A nurse is obtaining a clean-catch midstream urine specimen
from a female client. Which instruction is correct?
A. Clean the perineum from front to back and collect midstream
urine
B. Collect the first voided urine only
C. Clean from back to front
D. Use a random sample without cleaning
BCOT WEEK 3 PRACTICE EXAM Questions with Answers &
Rationales
1. Which oxygen delivery device provides the highest
concentration of oxygen?
A. Nasal cannula
B. Simple face mask
C. Non-rebreather mask
D. Venturi mask
Answer: C
Rationale: A non-rebreather mask can deliver up to 90–100%
oxygen.
2. A client is on a nasal cannula at 2 L/min. The approximate
oxygen concentration delivered is:
A. 24–28%
B. 40–60%
C. 60–80%
D. 90–100%
Answer: A
Rationale: Nasal cannula at 2 L/min delivers about 24–28%
FiO2.
, Page |2
3. A nurse is preparing a sterile field. Which action
contaminates the field?
A. Keeping the sterile field above waist level
B. Opening sterile packages away from the body
C. Reaching across the sterile field
D. Using sterile gloves to touch sterile items
Answer: C
Rationale: Reaching across a sterile field causes contamination.
4. Which of the following is the correct way to remove a soiled
dressing?
A. Use clean gloves and remove the dressing from clean to dirty
B. Use sterile gloves and remove the dressing from dirty to
clean
C. Use bare hands
D. Leave the old dressing in place and cover with a new one
Answer: A
Rationale: Use clean gloves; remove from clean to dirty to
minimize contamination.
5. A client has a wound with purulent drainage. The nurse
should:
A. Clean the wound and notify the provider for possible
, Page |3
infection
B. Apply a dry dressing only
C. Ignore the drainage
D. Use room deodorizer only
Answer: A
Rationale: Purulent drainage suggests infection; clean and
notify.
6. A client with a wound has a foul odor. This may indicate:
A. Infection or necrotic tissue
B. Normal healing
C. Dehydration
D. No concern
Answer: A
Rationale: Foul odor often indicates infection or necrosis.
7. A nurse is obtaining a clean-catch midstream urine specimen
from a female client. Which instruction is correct?
A. Clean the perineum from front to back and collect midstream
urine
B. Collect the first voided urine only
C. Clean from back to front
D. Use a random sample without cleaning
