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Mandatory modes

The mandatory ventilation modes (S)CMV and P-CMV deliver time-cycled mandatory breaths, volume-controlled or pressure-controlled, respectively.
When the patient triggers or the user initiates a breath, the respiratory rate increases, while both the inspiratory time and the tidal volume (for (S)CMV) or respiratory pressure (for P-CMV) remains constant. The minute volume increases as a result.

Synchronized controlled mandatory ventilation ((S)CMV) mode.

The (S)CMV mode provides volume-controlled mandatory breaths only. The controls active in the (S)CMV mode are shown figure B-1. the tidal volume (Vt) setting defines the delivered volume. The rate and breath timing setting (see section 1.5) define the breath cycle timing. Breaths can be triggered by the ventilator, patient, or user.

In this mode, the user sets the Vt, the rate and the other breath timing controls, and the FlowPattern. As in all other modes, the user also set the PEEP/CPAP and Oxygen, and the pressure or flow trigger if desired.