Covidien Puritan Bennett 560 User Manual page 141

Glossary
Patient Counter
Counter of ventilation time for the patient.
Patient effort
Inspiratory effort initiated by the patient.
Patient circuit
Tubing between the ventilator and the patient.
Pause
Waveforms freezing function.
PAW (Peak Airway Pressure)
The Peak Airway Pressure is the average peak pressure during the inspiratory phase, measured by
each cycle and over the previous 24 hour period.
Peak Inspiratory Pressure (PIP)
The highest pressure measured in the patient circuit during the inspiration phase.
Positive End Expiratory Pressure (PEEP)
Pressure in the patient circuit at the end of expiration.
Pressure Control (P Control)
Augmentation of the patient's ventilation synchronously with inspiratory effort until a preset
pressure is met. Pressure is maintained throughout patient inspiratory flow, and is cycled to
expiration by time (controlled by the selected Inspiratory Time setting). Used in Assist/Control
mode.
Pressure Support (P Support)
Augmentation of the patient's ventilation synchronously with inspiratory effort until a preset
pressure is met. Pressure is maintained until inspiratory flow is reduced to a percentage of peak
flow that depends on the exhalation sensitivity setting for the inspiration, when the ventilator
cycles into exhalation. Available in SIMV or Spontaneous modes.
PSI
Pounds Per Square Inch.
PSV (Pressure Support Ventilation)
Pressure support ventilation.
Rebreathing
The patient breathes his/her exhaled gas.
Respiration rate
.
The number of breath cycles (inspiration + expiration) completed within one minute Normal
resting adult respiratory rates are from 12 – 20 breaths per minute (bpm).
Rise Time
This determines how the target pressure will be reached, and indirectly defines the minimum
inspiration time.
G-5
User's Manual