APEX MOCK EXAM 2, APEX MOCK EXAM 3
low pressure system
Intermediate Pressure System
High Pressure system
How many pressure systems are there in the anesthesia machine?
Hanger Yoke
Yoke block with check Valves
Cylinder pressure gauge
Cylinder pressure regulators
What are the components of the high pressure system in the anesthesia machine ?
Begins a the cylinder
Ends at the cylinder regulators
Where does the high pressure system in the anesthesia machine begin and end?
-pipeline inlets
-pressure gauges
-o2 press failure device
-o2 second stage regulator
-o2 flush valve
-vent power inlet
-flowmeter valves
What are the components of the Intermediate pressure system in the anesthesia machine
Begins at the pipe line
Ends at the flow meter valves
Where does the intermediate pressure system in the anesthesia machine begin and end?
Flowmeter Tubes (Thorpe tubes)
Vaporizers
Check Valve (if present)
common gas outlet
What are the components of the Low pressure system in the anesthesia machine
Begins at flow meter tubes
Ends at common gas outlet
Where does the low pressure system in the anesthesia machine begin and end?
50 psi
,What is the pipeline pressure in the intermediate pressure system of the anesthesia machine?
45psi
What is the tank pressure in the intermediate pressure system of the anesthesia machine?
The integrity of the low pressure circuit from the flowmeter valves to the common gas outlet.
What are you testing during a low pressure leak test of the anesthesia machine?
By attaching a bulb to the common gas outlet and creating negative pressure.
How do you perform a low pressure leak test of the anesthesia machine?
Inflation of the bulb within 10sec
What indicates a failure of the system during a low pressure leak test?
Low pressure leak test
What is the best way to test the anesthesia machine for a vaporizer leak?
Fresh gas flow
Minimum FGF
Ventilator
What should always be turned off during the low pressure leak test?
Off initially, then th test should be repeated as each vaporizer is turned on
During the low pressure leak test the vaporizers should be in what position?
The breathing circuit and entire low pressure system
What does the high pressure leak test on the anesthesia machine with NO check valve?
The breathing circuit and low pressure system up to check valve only.
What does the high pressure leak test on the anesthesia machine with check valve?
Closing the APL valve and pressurizing the system to 30cm/H2O, while observing the airway
pressure gauge for a constant pressure.
How does one perform a High pressure leak test on the anesthesia machine?
Closed
When the check valve is in the prescence of back pressure it is considered to be open or closed?
Open
In the anesthesia machine the absence of back pressure means the check valve is considered to be
open or closed?
,a description of the architecture of the anesthesia machine that details the path gases flow from
anesthesia suite, through machine and breathing circuit.
What is the SPDD Model?
Supply
Processing
Delivery
Disposal
What are the components of the SPDD model?
Supply-How the gas enters the anesthesia machine located at the pipeline to the back of the
anesthesia machine
What is the S of the SPDD Model?
Processing- How the anesthesia machine prepares the gases before they are delivered to the
patient. Located inside the machine up to the common gas outlet
What is the P of the SPDD Model?
Delivery- How the prepared gasses are brought to the patient via the breathing circuit
What is the firs D of the SPDD Model?
Disposal-How the gases are removed from the operating room via the scavenging system
What is the second D of the SPDD model?
O2 pressure failure alarm
O2 pressure failure device
O2 FLowmeter
O2 Flush valve
Ventilator drive gas
What are generally the 5 tasks of oxygen in the anesthesia machine?
Pin Index Safety System
what does "PISS" stand for?
Diameter Index Safety System
What does DISS stand for?
Prevents inadvertent misconcections of gas cylinders.
What is the purpose of the PISS?
1,5
What is the PISS configuration for Air?
, 2,5
What is the PISS configuration for Oxygen?
3,5
What is the PISS configuration for Nitrous Oxide?
The presence of more than one washer between the hanger and yoke assembly and the stem of
the tank.
How can the PISS be bypassed and lead to possible misconnection?
Prevents inadvertently misconnecting gas hoses via sized and threaded connectors for each
individual gas.
How does the DISS prevent harm?
Only when not using oxygen from pipeline
When should the oxygen cylinder on the back of the anesthesia machine be turned on?
1900 psi
How much PSI does the Air tank have?
625L
How many Liters does the standard Air tank hold?
1900 psi
How much psi does the standard oxygen tank have?
660L
How many liters does the standard oxygen tank hold?
745 psi
How much psi does the standard nitrous oxide tank have?
1590L
How many Liters does the standard nitrous oxide tank hold?
20.7lb
What is the weight of a full standard size nitrous oxide tank?
14.1lb
What is the weight of a empty standard size nitrous oxide tank?
low pressure system
Intermediate Pressure System
High Pressure system
How many pressure systems are there in the anesthesia machine?
Hanger Yoke
Yoke block with check Valves
Cylinder pressure gauge
Cylinder pressure regulators
What are the components of the high pressure system in the anesthesia machine ?
Begins a the cylinder
Ends at the cylinder regulators
Where does the high pressure system in the anesthesia machine begin and end?
-pipeline inlets
-pressure gauges
-o2 press failure device
-o2 second stage regulator
-o2 flush valve
-vent power inlet
-flowmeter valves
What are the components of the Intermediate pressure system in the anesthesia machine
Begins at the pipe line
Ends at the flow meter valves
Where does the intermediate pressure system in the anesthesia machine begin and end?
Flowmeter Tubes (Thorpe tubes)
Vaporizers
Check Valve (if present)
common gas outlet
What are the components of the Low pressure system in the anesthesia machine
Begins at flow meter tubes
Ends at common gas outlet
Where does the low pressure system in the anesthesia machine begin and end?
50 psi
,What is the pipeline pressure in the intermediate pressure system of the anesthesia machine?
45psi
What is the tank pressure in the intermediate pressure system of the anesthesia machine?
The integrity of the low pressure circuit from the flowmeter valves to the common gas outlet.
What are you testing during a low pressure leak test of the anesthesia machine?
By attaching a bulb to the common gas outlet and creating negative pressure.
How do you perform a low pressure leak test of the anesthesia machine?
Inflation of the bulb within 10sec
What indicates a failure of the system during a low pressure leak test?
Low pressure leak test
What is the best way to test the anesthesia machine for a vaporizer leak?
Fresh gas flow
Minimum FGF
Ventilator
What should always be turned off during the low pressure leak test?
Off initially, then th test should be repeated as each vaporizer is turned on
During the low pressure leak test the vaporizers should be in what position?
The breathing circuit and entire low pressure system
What does the high pressure leak test on the anesthesia machine with NO check valve?
The breathing circuit and low pressure system up to check valve only.
What does the high pressure leak test on the anesthesia machine with check valve?
Closing the APL valve and pressurizing the system to 30cm/H2O, while observing the airway
pressure gauge for a constant pressure.
How does one perform a High pressure leak test on the anesthesia machine?
Closed
When the check valve is in the prescence of back pressure it is considered to be open or closed?
Open
In the anesthesia machine the absence of back pressure means the check valve is considered to be
open or closed?
,a description of the architecture of the anesthesia machine that details the path gases flow from
anesthesia suite, through machine and breathing circuit.
What is the SPDD Model?
Supply
Processing
Delivery
Disposal
What are the components of the SPDD model?
Supply-How the gas enters the anesthesia machine located at the pipeline to the back of the
anesthesia machine
What is the S of the SPDD Model?
Processing- How the anesthesia machine prepares the gases before they are delivered to the
patient. Located inside the machine up to the common gas outlet
What is the P of the SPDD Model?
Delivery- How the prepared gasses are brought to the patient via the breathing circuit
What is the firs D of the SPDD Model?
Disposal-How the gases are removed from the operating room via the scavenging system
What is the second D of the SPDD model?
O2 pressure failure alarm
O2 pressure failure device
O2 FLowmeter
O2 Flush valve
Ventilator drive gas
What are generally the 5 tasks of oxygen in the anesthesia machine?
Pin Index Safety System
what does "PISS" stand for?
Diameter Index Safety System
What does DISS stand for?
Prevents inadvertent misconcections of gas cylinders.
What is the purpose of the PISS?
1,5
What is the PISS configuration for Air?
, 2,5
What is the PISS configuration for Oxygen?
3,5
What is the PISS configuration for Nitrous Oxide?
The presence of more than one washer between the hanger and yoke assembly and the stem of
the tank.
How can the PISS be bypassed and lead to possible misconnection?
Prevents inadvertently misconnecting gas hoses via sized and threaded connectors for each
individual gas.
How does the DISS prevent harm?
Only when not using oxygen from pipeline
When should the oxygen cylinder on the back of the anesthesia machine be turned on?
1900 psi
How much PSI does the Air tank have?
625L
How many Liters does the standard Air tank hold?
1900 psi
How much psi does the standard oxygen tank have?
660L
How many liters does the standard oxygen tank hold?
745 psi
How much psi does the standard nitrous oxide tank have?
1590L
How many Liters does the standard nitrous oxide tank hold?
20.7lb
What is the weight of a full standard size nitrous oxide tank?
14.1lb
What is the weight of a empty standard size nitrous oxide tank?
