Final answer:
To increase the FRC on a ventilator, optimize the respiratory rate and tidal volume.
Step-by-step explanation:
The FRC (Functional Residual Capacity) can be increased on a ventilator by optimizing the respiratory rate and tidal volume.
To increase the FRC on a ventilator, you can decrease the respiratory rate and increase the tidal volume per breath. This allows for deeper breaths and more air to remain in the lungs after expiration.
For example, if ventilation is low, the respiratory rate can be decreased while increasing the volume of air per breath. Conversely, if ventilation is high, the respiratory rate can be increased while decreasing the volume of air per breath.