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Ventilator - select what 3 things? -✓✓1. TYPE of ventilator
2. Ventilator MODE
3. CONTROL variable (how breath is delivered within mode)
Non-invasive ventilation (NIPPV) -✓✓CPAP/BiPAP
Invasive Ventilation (IPPV) -✓✓Full ventilatory supports (FVS)
Partial ventilatory support (PVS)
CPAP (continuous positive airway pressure) -✓✓Improves oxygenation
Treat cariogenic pulmonary edema
May be used in *stable COPD (patients with increases resistance)
Enhances surface area - making gas exchange easier
BiPAP (bilevel positive airway pressure) -✓✓Manage disorders such as COPD,
CF, MS, ALS
Reduces the need for intubation by 60-75%
Pressure triggered, pressure limited, flow cycled
Major Non-invasive ventilation advantage -✓✓Preserve airway defenses - avoid
infection
Once IPPV deemed necessary, select _______ -✓✓Mode
FVS vent rates -✓✓8 or greater
To maintain tidal volume
Tidal volume is determined by? -✓✓Patient's IBW and height
FVS mode -✓✓Assist/control (AC)
AC Mode of Ventilation -✓✓FVS vent
, Pressure or volume pre-set
FVS always used in ____ patients to rest respiratory muscles -✓✓ARF
PVS vent rates -✓✓Less than 6
PVS modes -✓✓Intermittent mandatory (IMV)
Pressure or volume support (PSV)
Proportional assist (PAV)
Mandatory minute (MMV)
When should you paralyze and sedate ventilated patients? -✓✓Only when the
ventilator is delivering true controlled breaths
Ventilator mode definition -✓✓Breath type and pattern delivery during mechanical
ventilation
Mode is determined by 3 factors -✓✓1. Type of breath: mandatory, spontaneous,
assisted
2. Targeted control volume: volume or pressure
3. Timing of breath delivery: continuous (AC or CMV), intermittent mandatory
(IMV) or continuous spontaneous (CSV)
3 types of breaths -✓✓1. Mandatory
2. Assisted - patients initiates breath all else controlled
3. Spontaneous - volume or pressure controlled
Goal of volume controlled ventilation -✓✓Maintain a certain level if PaCO2
Disadvantage of volume controlled ventilation -✓✓Pressure rises an
overdistension may occur
greater than 30 cmH2O dangerous
Settings in volume controlled ventilation -✓✓User sets:
Tidal volume (IBW)
Rate (usually start at 60 lpm)
Trigger sensitivity (-1 to -2 mmHg)
Flow rate