- Initiation phase:
- Is the start of the mechanical breath:
- Whether triggered by:
- The patient or
- The machine
- With a patient initiated breath:
- You will notice a:
- Slight negative deflection:
- Negative pressure, or sucking
- Slight negative deflection:
- You will notice a:
- Whether triggered by:
- Is the start of the mechanical breath:
- Inspiratory phase:
- Is the portion of mechanical breathing during which there is:
- A flow of air into the patient’s lungs:
- To achieve a maximal pressure:
- The peak airway pressure:
- PIP or Ppeak and
- A tidal volume:
- TV or VT
- The peak airway pressure:
- To achieve a maximal pressure:
- A flow of air into the patient’s lungs:
- Is the portion of mechanical breathing during which there is:
- Plateau phase:
- Does not routinely occur:
- In mechanically ventilated breaths:
- But may be checked:
- As an important diagnostic maneuver:
- To assess the plateau pressure:
- Pplat
- With cessation of air flow:
- The plateau pressure and the tidal volume (TV or VT) are:
- Briefly held constant
- The plateau pressure and the tidal volume (TV or VT) are:
- To assess the plateau pressure:
- As an important diagnostic maneuver:
- But may be checked:
- In mechanically ventilated breaths:
- Does not routinely occur:
- Exhalation:
- Is a passive process in mechanical breathing:
- The start of the exhalation process can be either:
- Volume cycled:
- When a maximum tidal volume is achieved
- Time cycled:
- After a set number of seconds), or
- Flow cycled:
- After achieving a certain flow rate
- Volume cycled:
- The start of the exhalation process can be either:
- Is a passive process in mechanical breathing:
#Arrangoiz #Teacher #Surgeon #Doctor
Rodrigo Arrangoiz MS, MD, FACS, FSSO 