Card Set Information
what 2 main thing ventilator does to help pt?
oxygenate and ventilate
what setting can RT change?
Volume, rate, pressure, O2 setting.
what 2 additional setting can RT use?
Pressure support and PEEP
the ventilator supports every breath, whether it's initiated by the patient or the ventilator. AC is often used to allow the patient to rest, because the ventilator
does all the work. This high level of respiratory support is frequently
required in patients who have been resuscitated, have acute respiratory
distress syndrome (ARDS), or are paralyzed or sedated.
what complication can AC mode cause?
not all spontaneous breaths are assisted, leaving the patient to draw some breaths on her own.SIMV helps preserve the strength of the respiratory musculature,
decreases the risk of hyperventilation and barotrauma, and facilitates
increase oxygenation in either AC or SIMV mode. The effect of PEEP on
the lungs is similar to blowing up a balloon and not letting it
completely deflate before blowing it up again. PEEP should not exceed 20 cm H2O; higher settings increase the risk of severe lung damage, subcutaneous emphysema, and pneumothorax.4
Used alone or added to SIMV, this provides a small amount of pressure
during inspiration to help the patient draw in a spontaneous breath.
Pressure support makes it easier for the patient to overcome the
resistance of the ET tube and is often used during weaning because it
reduces the work of breathing. It's not necessary during AC ventilation
because in that setting, the ventilator supports all of the breaths.