NURS 3270: Exam 2 Study Guide
Questions with Actual Detailed
Answers 2026 Updated.
What is the amount of O2 a nasal cannula can deliver? - Answer - 1-6 L/min: 24%-44%
- (low-flow device)
- humidified if >4L
*Prongs must curve downward to direct oxygen into lower airway
What are the advantages of the nasal cannula? - Answer - Safe and simple
- Easily tolerated
- Effective for low concentrations
- Does not impede eating or talking
- Inexpensive, disposable
What are the disadvantages of the nasal cannula? - Answer - Unable to use with nasal
obstruction
- Drying to mucous membranes
- Can dislodge easily
- May cause skin irritation or breakdown
- Patient's breathing pattern will affect exact FIO2
What is the amount of O2 an Oxygen- reserving cannula "Oxymizer" can deliver? - Answer -
8 L/min: 30%-60%
- (low-flow device)
- no humidification needed
What are the advantages of the Oxygen- reserving cannula "Oxymizer"? - Answer - Indicated
for long-term O2 useing the home or nursing
- facility Allows increased O2 concentrations and lower flow
What are the disadvantages of the Oxygen- reserving cannula "Oxymizer"? - Answer -
Cannula cannot be cleaned
- More expensive than standard cannula
,What is the amount of O2 a simple face mask can deliver? - Answer - 6-12 L/min: 35%-50%
- (low-flow device)
- short term
What are the advantages of the simple face mask? - Answer Useful for short periods of time
such as patient transportation
What are the disadvantages of the simple face mask? - Answer - Contraindicated for patients
who retain CO2
- May induce feelings of claustrophobia
- Therapy interrupted with eating or drinking
What is the amount of O2 a Partial Non-rebreather can deliver? - Answer - 10-15 L/min:
60%-90%
- (low-flow device)
* inflate reservoir first
*Bag should always remain partially inflated, so flow rate must be high enough to prevent
collapse of bag
What are the advantages of the Partial Non-rebreather? - Answer - Useful for short periods
- Delivers increased FIO2
- Easily humidifies O2
- Does not dry mucous membranes
What are the disadvantages of the partial non-rebreather? - Answer - Hot and confining
- May cause skin irritation
- Interferes with eating, drinking, and talking
- Bag may twist and deflate
What is the amount of O2 a Non-rebreather can deliver? - Answer **EMERGENCY USE
- 10-15 L/min: 60%-100%
- (low-flow device)
What are the advantages of the Non-rebreather? - Answer - Valve closes during expiration,
so exhaled air does not enter reservoir and mix with inhaledO2
- See partial nonrebreather
, What are the disadvantages of the non-rebreather? - Answer - Requires tight seal, difficult to
maintain and uncomfortable
- See partial non-rebreather above.
What is the amount of O2 a venturi mask can deliver? - Answer - Prescribed liter and
percentage flow
- (High-flow device)
What are the advantages of the venturi mask? - Answer - PERCISE
- Provides specific amount of O2
What are the disadvantages of the venturi mask? - Answer Mask and humidity may irritate
skin
What is the amount of O2 a high-flow nasal cannula can deliver? - Answer - Adjustable FiO2:
21-100% with a modifiable flow up to 60 L/min
- High-flow device
- heated/humidified
- green tubing
- used in critical care (severe O2 desaturation, acute resp
failure)
What are the advantages of the high-flow nasal cannula? - Answer - Wide range of FiO2
- Air-oxygen blender that achieves escalation of FIO221% to 100%
- Humidifies and warms gas 88-98.6
What are the disadvantages of the high-flow nasal cannula? - Answer - FFiO2 dependent on
patient respiratory pattern and input
flow
- Risk for infection due to humidification and warmth
Healthy ergonomics/body mechanics to prevent injury when moving patients - Answer - USE
LEGS TO LIFT
- keep back straight
- use mechanical lifts when possible
- use assistive devices such gate belts
Questions with Actual Detailed
Answers 2026 Updated.
What is the amount of O2 a nasal cannula can deliver? - Answer - 1-6 L/min: 24%-44%
- (low-flow device)
- humidified if >4L
*Prongs must curve downward to direct oxygen into lower airway
What are the advantages of the nasal cannula? - Answer - Safe and simple
- Easily tolerated
- Effective for low concentrations
- Does not impede eating or talking
- Inexpensive, disposable
What are the disadvantages of the nasal cannula? - Answer - Unable to use with nasal
obstruction
- Drying to mucous membranes
- Can dislodge easily
- May cause skin irritation or breakdown
- Patient's breathing pattern will affect exact FIO2
What is the amount of O2 an Oxygen- reserving cannula "Oxymizer" can deliver? - Answer -
8 L/min: 30%-60%
- (low-flow device)
- no humidification needed
What are the advantages of the Oxygen- reserving cannula "Oxymizer"? - Answer - Indicated
for long-term O2 useing the home or nursing
- facility Allows increased O2 concentrations and lower flow
What are the disadvantages of the Oxygen- reserving cannula "Oxymizer"? - Answer -
Cannula cannot be cleaned
- More expensive than standard cannula
,What is the amount of O2 a simple face mask can deliver? - Answer - 6-12 L/min: 35%-50%
- (low-flow device)
- short term
What are the advantages of the simple face mask? - Answer Useful for short periods of time
such as patient transportation
What are the disadvantages of the simple face mask? - Answer - Contraindicated for patients
who retain CO2
- May induce feelings of claustrophobia
- Therapy interrupted with eating or drinking
What is the amount of O2 a Partial Non-rebreather can deliver? - Answer - 10-15 L/min:
60%-90%
- (low-flow device)
* inflate reservoir first
*Bag should always remain partially inflated, so flow rate must be high enough to prevent
collapse of bag
What are the advantages of the Partial Non-rebreather? - Answer - Useful for short periods
- Delivers increased FIO2
- Easily humidifies O2
- Does not dry mucous membranes
What are the disadvantages of the partial non-rebreather? - Answer - Hot and confining
- May cause skin irritation
- Interferes with eating, drinking, and talking
- Bag may twist and deflate
What is the amount of O2 a Non-rebreather can deliver? - Answer **EMERGENCY USE
- 10-15 L/min: 60%-100%
- (low-flow device)
What are the advantages of the Non-rebreather? - Answer - Valve closes during expiration,
so exhaled air does not enter reservoir and mix with inhaledO2
- See partial nonrebreather
, What are the disadvantages of the non-rebreather? - Answer - Requires tight seal, difficult to
maintain and uncomfortable
- See partial non-rebreather above.
What is the amount of O2 a venturi mask can deliver? - Answer - Prescribed liter and
percentage flow
- (High-flow device)
What are the advantages of the venturi mask? - Answer - PERCISE
- Provides specific amount of O2
What are the disadvantages of the venturi mask? - Answer Mask and humidity may irritate
skin
What is the amount of O2 a high-flow nasal cannula can deliver? - Answer - Adjustable FiO2:
21-100% with a modifiable flow up to 60 L/min
- High-flow device
- heated/humidified
- green tubing
- used in critical care (severe O2 desaturation, acute resp
failure)
What are the advantages of the high-flow nasal cannula? - Answer - Wide range of FiO2
- Air-oxygen blender that achieves escalation of FIO221% to 100%
- Humidifies and warms gas 88-98.6
What are the disadvantages of the high-flow nasal cannula? - Answer - FFiO2 dependent on
patient respiratory pattern and input
flow
- Risk for infection due to humidification and warmth
Healthy ergonomics/body mechanics to prevent injury when moving patients - Answer - USE
LEGS TO LIFT
- keep back straight
- use mechanical lifts when possible
- use assistive devices such gate belts
