Chapter 1 Flashcards
What is the Penlon Anaesthesia Nuffield Ventilator primarily used for?
Controlled ventilation for patients of different sizes and lung compliance
It can be used with different breathing systems.
How does the Penlon Anaesthesia Nuffield Ventilator function in adult use?
Volume preset time cycled, flow generator.
What are the disadvantages of the Manley MP3 Ventilator?
- Ventilator ceases to function when FGF is disconnected
- Ventilating patients with poor pulmonary compliance is not easily achieved
- Generates back pressure in back bar
- Emergency O2 flush should not be activated while using the vent
- Absence of alarming system.
What is the mechanism of action for the Manley MP3 Ventilator?
Fresh gas flow drive ventilator that uses bellows system for inspiration and expiration.
List the components of the Manley MP3 Ventilator.
- Control module (airway pressure gauge, inspiratory and expiratory time dials, flow rate dial, on/off switch)
- Valve block with tubing connection, exhaust part, pressure relief valve
- Pediatric valve option.
What is the primary driving gas for the Penlon Anaesthesia Nuffield Ventilator?
Oxygen supplied from compressed oxygen outlets on the anaesthetic machine.
What is the tidal volume range for the driving unit of the bag in bottle ventilator?
0 – 1500ml for adults and 0 – 400ml for pediatric version.
What are the disadvantages of the bag in bottle ventilator?
- Positive pressure in standing bellow causes a peep of 2-4cm H2O
- Ascending bellows collapses in cases of disconnection or leak
- Doesn’t consider the patient’s lung compliance.
Define volume cycling in ventilators.
Ventilator changes to exhalation when predetermined tidal volume is reached during inspiration.
What does the term IPPV stand for?
Intermittent Positive Pressure Ventilation.
What are the characteristics of an ideal ventilator?
- Simple, portable, robust, economical
- Versatile with tidal volume up to 1500ml and RR up to 60/min
- Monitors airway pressure, inspired and exhaled minute volume, TV, RR, and inspired oxygen concentration.
- Facilities for humidification and drug nebulization.
- Alarms for disconnection, high airway pressure, and power failure.
- Easy to clean and sterilize.
What does a PEEP valve do?
Increases functional residual capacity (FRC) to improve patient’s oxygenation.
What are the main types of ventilation modes?
- Synchronized Intermittent Mandatory Ventilation (SIMV)
- Supported Ventilation Mode (SVM).
What is the mechanism of action for a self-inflating bag?
Provides manual IPPV using a portable design during resuscitation.
What is the purpose of the Ventipac ventilator?
Provides portable, time cycled, volume preset, pressure limited ventilation.
What is the primary function of the Servo-I ventilator?
Versatile intensive care ventilator for adults and pediatrics.
What is the source of power for the high frequency jet ventilator?
Pressurized gas.
True or False: The Manley MP3 ventilator uses a pressure generator mechanism.
False.
Fill in the blank: The ventilator that uses a time cycle and can be used for both adults and pediatrics is the _______.
Bag in Bottle Ventilator.
What alarms should be present in a ventilator?
- Low pressure (disconnection)
- High pressure (obstruction)
- Supply gas failure.
