BRPT 02 - Regulators, Flowmeter, Blenders and
Concentrators #2 questions with verified answers
1 psi Ans✓✓✓ 51.7 mmHg
1mmHg Ans✓✓✓ 1.36 cmH2O
1psi Ans✓✓✓ 70.34 cmHg
3 typers Flowmeters Ans✓✓✓ 1- bourdon (uncompensated)
2- thorpe ( usually compensated)
3- flow restrictor
flowmeters must be attache to a pressure reducing valve or a bedside
wall gas outlet ( 50 psi source)
a flowmeter requires what working pressure? Ans✓✓✓ 50 psi
air compressor Ans✓✓✓ a devices that produces compressed rom air (
21% oxygen)
+ medical compressor usually have an output of 50 psi
+ used to power equipment which requires a 50 psi
, All- in On "E "Cylinder Ans✓✓✓ + most common cylinder used in
hospitals today
+ reduces damage to loose regulators, saves time in applying
regulators, simplifies for non-respiratory staff
+ cylinder comes with pre-attached regulator/ flowmeter
Blender limitation Ans✓✓✓ + blenders are rated at certain maximum
flow with specific psig
+ important to know the above info to be sure the blender can meet
flow/ pressure needs
+ you need a high flow blenders to power a ventilation or delivery than
15 lpm blenders gas flow
Bourdon Gauge Flowmeter Ans✓✓✓ + it is not compensated
+ not accurate in the presence of back pressure
+ still used for transport bc they will be accurate in horizontal position
+ not affected by gravity
+ reading may be false
Calculating ( Titration) Percentage of Mixed Oxygen and Air Ans✓✓✓ If
an appropriate blending device is not available the therapist may need
to blend oxygen and air from flowmeter together to create a specific
flow. To calculate delivered FiO2; O2 % = [ oxygen (100) + air flow
(21)] /(oxygen flow + air flow)
Concentrators #2 questions with verified answers
1 psi Ans✓✓✓ 51.7 mmHg
1mmHg Ans✓✓✓ 1.36 cmH2O
1psi Ans✓✓✓ 70.34 cmHg
3 typers Flowmeters Ans✓✓✓ 1- bourdon (uncompensated)
2- thorpe ( usually compensated)
3- flow restrictor
flowmeters must be attache to a pressure reducing valve or a bedside
wall gas outlet ( 50 psi source)
a flowmeter requires what working pressure? Ans✓✓✓ 50 psi
air compressor Ans✓✓✓ a devices that produces compressed rom air (
21% oxygen)
+ medical compressor usually have an output of 50 psi
+ used to power equipment which requires a 50 psi
, All- in On "E "Cylinder Ans✓✓✓ + most common cylinder used in
hospitals today
+ reduces damage to loose regulators, saves time in applying
regulators, simplifies for non-respiratory staff
+ cylinder comes with pre-attached regulator/ flowmeter
Blender limitation Ans✓✓✓ + blenders are rated at certain maximum
flow with specific psig
+ important to know the above info to be sure the blender can meet
flow/ pressure needs
+ you need a high flow blenders to power a ventilation or delivery than
15 lpm blenders gas flow
Bourdon Gauge Flowmeter Ans✓✓✓ + it is not compensated
+ not accurate in the presence of back pressure
+ still used for transport bc they will be accurate in horizontal position
+ not affected by gravity
+ reading may be false
Calculating ( Titration) Percentage of Mixed Oxygen and Air Ans✓✓✓ If
an appropriate blending device is not available the therapist may need
to blend oxygen and air from flowmeter together to create a specific
flow. To calculate delivered FiO2; O2 % = [ oxygen (100) + air flow
(21)] /(oxygen flow + air flow)
