Question 1
Which setting on a ventilator would require a nursing intervention to improve the outcome for a 60-kg patient with acute lung injury (ALI)?
◦ Respiratory rate = 15 per minute, when the CO
2 levels are elevated
◦ FiO
2 = 0.30 or 30%
◦ Inspiratory:Expiratory ratio (I:E) = 1:2
◦ Tidal volume (V
T) = 900 mL
Question 2
Which statement made by a new graduate nurse about invasive mechanical ventilation techniques is incorrect and requires additional teaching?
◦ "Assist control mode refers to the patient receiving a set total lung capacity (TLC), but the rate can be modified by the patient's own rate of breathing."
◦ "Continuous positive airway pressure will increase the residual capacity and keep the alveoli open. Rate and volume are controlled by the patient. This is one step in the weaning process."
◦ "Synchronized intermittent mandatory ventilation (SIMV) refers to the patient setting an independent rate but limited tidal volume based on the patient's own strength. A minimum rate is also used as a backup to prevent hypoventilation."
◦ "Total control mode controls both the rate and volume that are preset and delivered without the machine responding to any of the patient's own breaths."
Mechanisms of gill ventilation.
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