Invasive Mechanical Ventilation made VERY-EASY!
Remember Principles are KING!
If you understand the basic principles of invasive mechanical ventilation you will have the fundamental knowledge on how to use any type of ventilator that you will encounter in the field.
Invasive mechanical ventilation with Endotracheal tube or a Tracheostomy tube is a definitive intervention to ensure acceptable oxygenation and ventilation with a secure airway
1 TRIGGER- What causes a breath to be given. ( 2 Types: Control and Assisted)
Control: Elapsed machine timer governs the trigger and not the patient!
Input RR 12 or 1 Breath every 5 seconds (12 Breath a minute). (Machine is programmed to initiate a breath every 5 seconds)
Assisted: Triggering signal results when the patient’s inspiratory effort (NiF) produces a drop in airway pressure or a diversion of constant gas flow in the ventilator circuitry.
2 TARGET- This is our Goal! It’s what the clinicians are aiming to reach. (2 Types: Set Flow or Set Pressure)
Set flow (volume): is constant. 60 LPM Liters per Minute that is 1 L a second.
Need to Monitor PIP and Plats (Fibrosis etc.)
Pressure (PIP and PLAT) is the DEPENDANT VARIABLE
Set Pressure :(Constant) such as 20cmH2O.
Watch patients Vte (exhaled tidal volume) and minute ventilations (RR X TV = MV)
FLOW AND VOLUME ARE THE DEPENDANT VARIABLES
3 CYCLE-Turns the breath off. This tells the ventilator to stop gas delivery and begin expiration.
Set Volume (500mL) is what turns OFF (In Flow targeted)
Set iTime (0.8 sec) – is what turns OFF (In Pressure targeted)
Decrease in flow rate is what turns OFF ( In pressure support)
5 Basic Breath Types
Frequently encountered ventilator modes
Invasive Mechanical Ventilation made VERY-EASY! Part 1
Invasive Mechanical Ventilation made VERY-EASY! Part 2
Invasive Mechanical Ventilation made VERY-EASY! Part 3
Invasive Mechanical Ventilation made VERY-EASY! Part 4
Invasive Mechanical Ventilation made VERY-EASY! Part 5