![]() ![]() ģ- Continuous Positive Airway Pressure (CPAP) Positive pressure applied at the end of expiration. the patient is allowed to breathe spontaneously, i.e., without ventilator assist, between delivered ventilator breaths.Advantage : - Timer backup - Patient-vent - Synchrony - Patient controls - minute ventilation Disadvantage : - Not useful for weaning - Potential for dangerous respiratory alkalosisĢ-Synchronized Intermittent Mandatory Ventilation (SIMV) ![]() Mode of mechanical ventilation : 1-Assist Control Mode Ventilation (ACMV) An inspiratory cycle is initiated either by the patient’s inspiratory effort or, if no patient effort is detect within a specified time window, by a timer signal within the ventilator. Indication of mechanical ventilation : 1- Cardiac or respiratory arrest 2- Tachypnea or bradypnea with respiratory fatigue or impending arrest 3- Acute respiratory acidosis 4- Refractory hypoxemia 1.0) 5- Inability to protect the airway associated with depressed levels of consciousness 6- Shock associated with excessive respiratory work 7- Inability to clear secretions with impaired gas exchange or excessive respiratory work ![]() Ventilators are specially designed pumps that can support the ventilatory function of the respiratory system and improve oxygenation through application of high oxygen content gas and positive pressure. ![]()
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