·Assessment: -Hyperventilation/overdistention Excessive chest movement,hypocarbia Risk of acute or chronic lung injury ·Actions: Reduce PIP until chest rises gently but not excessively Follow changes on P-V curve Reduce rate by 10 then by increments of 5 to maintain PaCO2 45 to 55 cm H20 Repeat blood gas• Assessment: – Hyperventilation/overdistention • Excessive chest movement, hypocarbia • Risk of acute or chronic lung injury • Actions: – Reduce PIP until chest rises gently but not excessively • Follow changes on P-V curve – Reduce rate by 10 then by increments of 5 to maintain PaCO2 45 to 55 cm H2O – Repeat blood gas