Continuous Positive Airway Pressure Cpap

Chapter 7 Operating Theory

Continuous Positive Airway Pressure (CPAP)

CPAP is a spontaneous mode of ventilation. No mandatory breaths are delivered. Throughout the breath cycle, an operator set pressure is provided. The level of pressure delivered during CPAP is the baseline pressure, or PEEP (Positive end Expiratory Pressure). Refer to Figure 7-3.

Figure 7-3: Continuous Positive Airway Pressure (CPAP)

Pressure Support Ventilation (PSV)

In Pressure Support Ventilation, the patient’s spontaneous efforts are assisted by the ventilator at an operator set level of inspiratory pressure. Inspiration is initiated by the patient and terminated when the inspiratory flow falls below an operator set percentage of the peak flow during this breath. During Pressure Support, the patient determines the respiratory rate, and the patient and ventilator determine the inspiratory time and tidal volume. Refer to Figure 7-4.

Figure 7-4: Pressure Support Ventilation (PSV)

7-4

Respironics V200 Ventilator Operator’s Manual

REF 1057983 A

V200 specifications

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Philips V200 manual Continuous Positive Airway Pressure Cpap, Pressure Support Ventilation PSV

Models: V200

Chapter 7

Operating Theory