MTV1000 Ventilator System
65
User’s Manual
The ExSense means Exhalation Trigger sensitivity in pressure mode. The purpose is to
reduce exhalation W.O.B(work of breathing) of patient in pressure support ventilation(PSV).
It reduces patient’s expiring effort compared to the pressure detection mode in the past
and has equipment responses rapidly to the effort of the patient.
Expiration can be taken place only when it exceeds the target pressure after patient
finishes to inhalation. In this case, response speed is late and it needs patient’s effort.
The mechanic characteristic in PSV is not same in each ventilator. The Ex_Sense[%] is to
be decided by individual condition of patients.
If the patient doesn’t have enough spontaneous respiratory capacity, then inhalation must
be sufficiently taken place. Therefore Ex_Sense must be decreased.
7.1.15.
Predicted Body Weight
It is not the actual body weight and is based on the metabolic rate, and it is used as basic
criteria to determine Respiratory volume per minute, tidal volume, breathing rate, etc., the
trend is on the basis of height than body weight in general.
It becomes the standard of tidal volume multiplied by a BW factor(ml/Kg) and is used to
determine proper Respiratory rate per minute.
