MEDICAL GAS THERAPY LAB Exam | Verified Exam Questions and
Answers | Latest Updated Study Material 2026
Question:
There are two primary low-flow oxygen delivery systems and high-flow
Answer:
oxygen delivery systems. types of interfaces
used in the delivery of
oxygen therapy;
High-flow oxygen can achieve, and they provide a higher flow rate
delivery systems supply which either equals or exceeds the patients peak
oxygen at higher and inspiratory flow and VE.
more consistent
concentrations than
low-flow devices
nasal cannula is a low 1-6 L/min.
flow device which can
tolerate flows
between
Question:
An approximate
Answer:
oxygen
concentration being
delivered by nasal
cannula can be
estimated with the
following chart:
Simple masks need to
be set to a flow of at
least 5 L/min but no
greater than 10 L/min,
if the flow is set to <5
L/min the patient will
rebreathe their
Question:
exhaled CO2. Simple
, Answer:
masks deliver an
estimated FiO2 of 30-
50%.
Oxymasks, or open
oxygen masks provide
comfort and versatility
both for patients and
practitioners. Open
oxygen masks can
deliver flows from 1-15
L/min which is an
estimated FiO2 of 24-
90% depending on the
patient's ventilatory
pattern.
Question:
rebreather delivers an
Answer:
estimated FiO2 of 40-
70% and should be set
to a flow of >10 L/min.
Question:
The non-rebreather
Answer:
mask is similar in design
to the partial rebreather
however there is the
addition of a one-way
valve between the bag
and the mask and the
exhalation ports on the
sides of the masks are
covered with ports that
allow for exhalation of
gases but on inhalation
they close and do not
allow for the instillation
of room air to dilute the
Answers | Latest Updated Study Material 2026
Question:
There are two primary low-flow oxygen delivery systems and high-flow
Answer:
oxygen delivery systems. types of interfaces
used in the delivery of
oxygen therapy;
High-flow oxygen can achieve, and they provide a higher flow rate
delivery systems supply which either equals or exceeds the patients peak
oxygen at higher and inspiratory flow and VE.
more consistent
concentrations than
low-flow devices
nasal cannula is a low 1-6 L/min.
flow device which can
tolerate flows
between
Question:
An approximate
Answer:
oxygen
concentration being
delivered by nasal
cannula can be
estimated with the
following chart:
Simple masks need to
be set to a flow of at
least 5 L/min but no
greater than 10 L/min,
if the flow is set to <5
L/min the patient will
rebreathe their
Question:
exhaled CO2. Simple
, Answer:
masks deliver an
estimated FiO2 of 30-
50%.
Oxymasks, or open
oxygen masks provide
comfort and versatility
both for patients and
practitioners. Open
oxygen masks can
deliver flows from 1-15
L/min which is an
estimated FiO2 of 24-
90% depending on the
patient's ventilatory
pattern.
Question:
rebreather delivers an
Answer:
estimated FiO2 of 40-
70% and should be set
to a flow of >10 L/min.
Question:
The non-rebreather
Answer:
mask is similar in design
to the partial rebreather
however there is the
addition of a one-way
valve between the bag
and the mask and the
exhalation ports on the
sides of the masks are
covered with ports that
allow for exhalation of
gases but on inhalation
they close and do not
allow for the instillation
of room air to dilute the
