On a mechanical ventilator, pressure triggering is usually set within which of the following rang-es?
a. –0.5 to –1.5 cm H2O c. 0.5 to 2.0 cm H2O
b. –2.0 to 0.5 cm H2O d. 1.0 to 3.0 cm H2O
ANS: A
Pressure triggering usually is set at –0.5 to –1.5 cm H2O. This means that the trigger will occur at 0.5 to 1.5 cm H2O below the baseline pressure.
Health Professions
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