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Critical CareConcept
VentilatorOrientation900C Unit I
Question | Answer |
---|---|
Peak Flow preset inspiratory time is controlled by | peak flow tidal volume flow waveform pause time |
Peak Flow Preset I:E ratio is controlled by | peak flow tidal volume flow waveform pause time master rate |
Inspiratory Time % Preset inspiratory time is controlled by | IT% Master Rate Pause Time |
Inspiratory Time % preset I:E ratio is controlled by | Inspiratory time% Pause Time |
Peak flow in It% is controlled by | Inspiratory time% Tidal Volume Master Rate Flow Wave Form |
If Peak Flow is preset you can calculate I time in square waveform as | It=(VT/Flow)+Pause |
If Peak flow is preset and not in square wave form you can calculate as | It=RCT/Total parts of I:E ratio |
If inpsiratory Time% is preset you calculate It as | RCT*(IT%+Ptime%) |
In order to calculate Peak Flow in It% the VE is preset and based on a master rate and tidal volume. IT can also only be done with a square wave form | VE preset/IT% |
In the 900c in order to calculate peak flow based on accelerated flow you can estimate it by | VE/IT%(1.5) |
IT% of 80= | I:E 3:1 |
IT% of 67= | I:E 2:1 |
IT% of 50%= | I:E 1:1 |
IT% of 33%= | I:E 1:2 |
IT% of 25%- | I:E 1:3 |
IT% of 20%= | I:E 1:4 |
The Servo 900C is powered | pneumatically and electrically |
The bellows in the servo 900c provide a working pressure for the | patient circuit |
THe single circle manometer shows the | patient working pressure |
The alarm silence is active for | two minutes and cannot be reset |
The apnea alarm alarms after | greater than 15 seconds goes by between breaths |
If the alarm is yellow it means that it | is not set properly |
if the alarm is red it means that it is | alarming |
There are 2 small silver buttons on the PEEP know this is used as a | safety precaution |
The gas change button allows for | free flow gas flush |
The master rate must be set higher than the | set or SIMV rate |
The alarm types on the servo 900c include | high/low minute volume, apnea alarm, fio2 alarm, upper pressure alarm and the gas supply alarm |
What are the modes that are available on the servo 900 c | Volume control, Volume Control +sigh, Pressure control, pressure support ventilation, SIMV, SIMV +PS, CPAP and manual. |
What is the TLC for VC? | T- RCT L-Flow C-IT |
What is set in VC? | A master rate, VE, IT%,Pause %, PEEP, Sensitivity, Fi02 |
What is set in SIMV mode? | SIMV Rate, Master Rate, IT%, Pause %, Fi02, VE, Sensitivity, PEEP |
What is the TLC in SIMV mode? | T- RCT/Pt(pressure) L-Flow/Pressure C-It/ETS(preset at 25%) |
The SIMV Cycle is | the period of time between mandatory breaths |
The SIMV Period is | the time alloted for each mandatory breath |
The spontaneous breath is | equal to the SIMV cycle-SIMV period |
There is one sigh breath every | 100 breaths |
In SIMV + Pressure support the TLC is | T-RCT/Pt Pressure L Flow/ pressure C It/ETS |
In SIMV +pressure support you set the | Master rate, SIMV rate, fio2 It%, Pausse %, Sensitivity, PEEP, Inspiratory pressure level, VE |
In pressure support you set the | sensitivity, inspiratory pressure above PEEP, PEEP, fi02 |
The TLC for pressure support is | T- Pt. PRessure L-Pressure C-ETS |
Manual mode on the servo900c is typically use with | anesthesia and there is no apnea alarm. |