Final answer:
The BiPAP machine is capable of increasing Functional Residual Capacity by providing a CPAP effect, as it delivers two levels of air pressure that maintain open airways.
Step-by-step explanation:
The student is asking about a device that is capable of increasing Functional Residual Capacity (FRC) by providing a Continuous Positive Airway Pressure (CPAP) effect. Out of the options provided, the BiPAP machine is the one that can increase FRC using a CPAP effect. A BiPAP machine, or Bilevel Positive Airway Pressure device, delivers two levels of pressure: a higher pressure during inhalation and a lower pressure during exhalation, effectively keeping the airways open.
Devices like the nasal cannula and the Venturi mask are designed for oxygen delivery but do not provide the continuous positive airway pressure needed to increase FRC. A high-flow nasal cannula can deliver higher rates of oxygen and may create a small amount of positive pressure, but it is not directly intended for CPAP therapy. CPAP therapy, as referenced, is used in the treatment of sleep apnea and ensures the airway does not collapse by providing a constant stream of air.