Option A- means that every few second breath will be delivered to the patient by the computer so this will be computer aided breathing by patient. Also, if patient is breathing himself computer will help the patient. Option B- it is an uncomfoable procedure for patient as its a tight-fitting mask so d/t discomfo patient tries to remove it. | Causing compromised ventilation | CO2 || in body | Respiration acidosis Option C-here number of breath/min remain same but the pressure exeed by the ventilation is extra.which might cause barotrauma But will not cause any derangement so option c is ruled out. It may contribute hypoventilation but never Hyperventilation. Hypoventilation if pressure Delivered is not proper then expansion of chest will not occur contributing to accum. of CO2 in body. Option D- Synchronized intermittent mandatory ventilation this ventilator modality mode is used when we try to vain of the patient on ventilator. Ventilatory Mode Variables set by user (independent) Variable Monitored by User (Dependent) Trigger cycle Limit Advantages Disadvantages ACMV (assist control veilation) Tidal volume ventilator rate FO2 PEEP level pressure limit Peak, mean, and plateau airway pressure VE ABG I/E ratio Patient effo Timer Pressure limit Patient control Guaranteed ventilation Potential hyperventilation Barotraumia and volume trauma Every effective breath generates & ventilator volume IMV (intermittent mandatory ventilation) Tidal volume Mandatory ventilator rate Fio2 PEEP Level Pressure limit Spontaneous breaths between assisted breaths Peak, mean, and plateau airway pressure VE ABG I/E ratio Patient effo Timer Pressure limit Patient control Comfo from spontaneous breaths Guaranteed ventilation Potential dysynchrony Potential hypo ventilation PSV (presssure-suppo ventilaton) Inspiratory pressure level Fio2 PEEP Pressure limit Tidal volume Respiratory rate VE ABG Pressure limit Inspiratory flow Patient control Comfo Assures synchromy No timer backup Potential hypo-ventilation NV (non invasive ventilation) Inspiratory and expiratory level Tidal volume Respiratory rate Pressure limit Inspiratory flow Patient control Mask interface may cause discomfo and facial bruising