PALS 2025 Low flow O2 systems Exam
Questions With Correct Answers Latest Update
A low flow delivery system does what? -
correct answer ✅Delivers air through a nasal cannula or a simple
mask that does not fit tightly against the child’s face.
Low flow systems provide how much inspired O2 concentration?
Who uses them? -
correct answer ✅22- 60%
Used for stable children who require a low inspired O2
concentration, such a when a child is not in severe respiratory
distress or shock
Examples of low flow systems? -
correct answer ✅Nasal cannula and simple mask
O2 flow rate for nasal cannula -
correct answer ✅0.25 to 4 L/min
Simple mask flow rate? -
correct answer ✅6-10 L/min Inspired O2 concentration of 35- 60%
,PALS 2025 Low flow O2 systems Exam
Questions With Correct Answers Latest Update
Why cant the simple mask deliver inspired O2 concentration
greater than 60%? -
correct answer ✅Because room air enters between the mask and
face during inspiration
high flow O2 delivery systems do what? Flow rate?
When should they be used?
Most common example of High flow O2 system? -
correct answer ✅Deliver O2 concentration 60% or greater (95%) .
Flow rate is 10L.
Used in emergency situations whenever the child has respiratory
distress or shock
Nonrebreathing mask
, PALS 2025 Low flow O2 systems Exam
Questions With Correct Answers Latest Update
Nonrebreathing mask valves do what? -
correct answer ✅A valve in 1 or both exhalation ports to prevent
room air from entering during inspiration
Valve between reservoir bag and mask to prevent flow of exhaled
gas into reservoir
How do you prevent bag collapse in nonrebreather? -
correct answer ✅Adjust O2 flow rate into mask. Greater than 10L
During inspiration how much O2 is drawn by the child with a
nonrebreather? -
correct answer ✅100% from the reservoir bag and O2 inflow
High Flow nasal cannula -
correct answer ✅O2 can be adjusted from 4 L in infants up to 40 L
or more in adolescents. Deliver a combo of room air and oxygen.
Gas flow for nebulizer? How long? -
correct answer ✅5-6L/min
Questions With Correct Answers Latest Update
A low flow delivery system does what? -
correct answer ✅Delivers air through a nasal cannula or a simple
mask that does not fit tightly against the child’s face.
Low flow systems provide how much inspired O2 concentration?
Who uses them? -
correct answer ✅22- 60%
Used for stable children who require a low inspired O2
concentration, such a when a child is not in severe respiratory
distress or shock
Examples of low flow systems? -
correct answer ✅Nasal cannula and simple mask
O2 flow rate for nasal cannula -
correct answer ✅0.25 to 4 L/min
Simple mask flow rate? -
correct answer ✅6-10 L/min Inspired O2 concentration of 35- 60%
,PALS 2025 Low flow O2 systems Exam
Questions With Correct Answers Latest Update
Why cant the simple mask deliver inspired O2 concentration
greater than 60%? -
correct answer ✅Because room air enters between the mask and
face during inspiration
high flow O2 delivery systems do what? Flow rate?
When should they be used?
Most common example of High flow O2 system? -
correct answer ✅Deliver O2 concentration 60% or greater (95%) .
Flow rate is 10L.
Used in emergency situations whenever the child has respiratory
distress or shock
Nonrebreathing mask
, PALS 2025 Low flow O2 systems Exam
Questions With Correct Answers Latest Update
Nonrebreathing mask valves do what? -
correct answer ✅A valve in 1 or both exhalation ports to prevent
room air from entering during inspiration
Valve between reservoir bag and mask to prevent flow of exhaled
gas into reservoir
How do you prevent bag collapse in nonrebreather? -
correct answer ✅Adjust O2 flow rate into mask. Greater than 10L
During inspiration how much O2 is drawn by the child with a
nonrebreather? -
correct answer ✅100% from the reservoir bag and O2 inflow
High Flow nasal cannula -
correct answer ✅O2 can be adjusted from 4 L in infants up to 40 L
or more in adolescents. Deliver a combo of room air and oxygen.
Gas flow for nebulizer? How long? -
correct answer ✅5-6L/min
