Types of Ventilation

Positive Pressure Ventilation PPV

• The most common vent in acute care setting

• Forces oxygen into the lungs with each breath through an endotracheal tube or tracheostomy tube

Volume Cycled MOdes

• deliver breath until preset tidal volume is reached with each breath

Pressured Cycled Modes

• Deliver breath until a preset Pressure is achieved within airway

Assist-Control Ventilation (ACV)

• Delivers a preset volume at a preset rate and whenever the patients initiates a breath

• If no breath = it will automatically deliver a breath

• used if weak respiratory muscles

Synchronized Intermittent Mandatory Ventilation (SIMV)

• Synchronized to the patients effort

• allow spontaneous breathing between ventilated breaths

• used for WEANING for ventilator support

Pressured-Controlled Ventilation (PCV)

• Delivers a positive pressure breath until a maximum amount of airways pressure is reached then inspiratory phase of the breath stops

• There is a limit to prevent VILI

Pressure-Regulated Volume Control

• type of PCV which makes adjustment to any changes in lunch compliance and reduces the tidal vollume until airway pressure is back to normal range

Positive End Expiratory Pressure

• holds positive pressure in alveoli

• used as supplement to most ventilator

  • increases thoracic pressure causes to HYPOTENSION

Constant Positive Airway Pressure

• Similar to PEEP during spontaneous breaths

• 5-10 cmH2O

  • Frequently used to wean patients as noninvasive method

Pressure Support Ventilation

• Can be added to SIMV and CPAP

Weaning Assist Control Ventilation

• Control rate is decreased, patient strenghthens repi muscles by triggering more progressive respirations

Weaning T- Piece

Used when patient is awake and alert, breathing without difficulty, and has a good gag and cough reflex

Maintain oxygen level same or greater than oxygen concen the patient receiveing in mech vent