1. Spontaneous/time-controlled mode (S/T mode): It is suitable for patients with relatively stable spontaneous breathing, but at the same time there may be potential respiratory arrest or respiratory weakness.
2. Continuous positive airway pressure mode (CPAP mode): hospital ventilators help patients reduce airway resistance and maintain upper airway open state, etc., suitable for type I respiratory failure, acute and chronic heart failure, obstructive sleep apnea syndrome.
3. CPAP mode: The pressure control ventilation mode (PCV mode) performs forced ventilation according to the set parameters, and is generally only used in emergency situations.
Daytime S/T Mode: IPAP: 12-20 cmH2O; EPAP: 4-6 cmH2O; Pressure Rise Time: 50-100 ms; Expiration Sensitivity: 2-3 stops; Inspiratory Time: 0.8-1.2 seconds; Frequency: 12-15 times/min;
Nighttime S/T mode: IPAP: 12-20 cmH2O; EPAP: 6-8 cmH2O to eliminate snoring; ventilator pressure rise time: 50-100 ms; expiratory sensitivity: 2-3 gears; night: ST mode; inhalation Time: 0.8-1.2 seconds; Alternate breathing rate: 12-18 times/min.
Preferred S/T mode, IPAP: 12-20 cmH2O, EPAP: 4-6 cmH2O; pressure rise time: 50-100 ms; expiratory sensitivity: 2-3 gears; inspiratory time: 0.8-1.2 seconds; alternate breaths Frequency: 12-15 times/min.
The CPAP mode is preferred. The initial CPAP setting is mostly 5-8 cmH2O. According to the patient's comprehensive clinical conditions such as blood gas and pulse oxygen circulation function, adjustments are made every 5-10 minutes, with an increment of 2 cmH2O each time. The CPAP setting range is generally 6 -12 cmH2O.
For patients whose CPAP exceeds 12 cm H2O and cannot be improved in a short time, it is recommended to switch to tracheal intubation for invasive ventilation.
The fundamental purpose of ventilator machine use is to maintain effective alveolar ventilation and improve oxygenation, so as to gain time and conditions for the treatment of underlying causes.
Therefore, it is still necessary to comprehensively treat the patient after using the ventilator machine, including nebulization, drainage, etc., to improve the patient's ventilation function and maintain better human-machine coordination.
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