Sea air is rich in ozone

A patient is receiving volume support (VS) ventilation, which is classified as dual control, breath-to-breath, pressure-limited, flow cycled ventilation. The therapist sets the VT to 600 ml, and the respiratory rate control knob to 10 breaths/min. How will the ventilator respond if the patient's minute ventilation falls below 6 L/min?

A. The ventilator will increase the flow over the next three breaths until the target minute ventilation is achieved. B. Pressure will be added to the delivered VT over the next three breaths until the original minute ventilation is restored. C. A backup respiratory rate will be activated to re-establish the target minute ventilation. D. Inspiratory time will automatically be prolonged to increase the delivered VT, and restore the initial minute ventilation.

For treatment of the maxillary arch, the dental light is ____________

a. raised and the beam directed downward b. lowered and the beam directed upward c. raised and the beam directed upward d. lowered and the beam directed downward