Saadat Respina P1 User Manual page 44

the patient may terminate P0.1 maneuver, this maneuver will not enable Apnea alarm. If user
intends not to switch to the apnea backup during the maneuver, he/she should disable the
apnea backup.
If user presses the STOP key during the maneuver, the maneuver terminates and ventilation
will resume immediately. In this case, the value of P0.1 is not calculated.
It is not possible to change the ventilation mode, setting parameters and using the membrane
keys during P0.1 maneuver.
 Negative Inspiratory Force (NIF)
This parameter measures maximum negative pressure generated during inspiration occlusion.
It also indicates maximum strength of the inspiratory muscles especially diaphragm. To
measure this parameter, a maneuver with the same name (NIF) is defined.
The NIF maneuver begins after the minimum time has elapsed of exhalation, by clicking the
Start key.
During the maneuver (duration is selected by user and ranges from 4 to 20 sec), the pressure
drops resulted from the patient respiratory effort are monitored and the lowest pressure value
is reported.
The patient will not be able to trigger a breath during the maneuver. The NIF maneuver will
not cause Apnea.
A mandatory breath (in A/C, SIMV, PRVC and APRV modes) or an assist-control breath (in
PSV, VSV modes) will be delivered to the patient after the maneuver. If user intends not to
switch to the apnea backup during the maneuver, he/she should disable the apnea backup.
If user press Stop button during the maneuver, the maneuver will terminate and immediately
a breath will be delivered to the patient. In this condition NIF value is not calculated. If NIF
parameter it has a value of NIF before performing this maneuver, it retains the same value as
before. The maneuver will not be performed if the device is set to an exhalation time of less
than 350 ms.
It is not possible to change the ventilation mode, setting parameters and using the membrane
keys during NIF maneuver.
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