IRCT2013030612726N1 IRCT 2013-05-07 Kerman University of Medical Sciences Impact of using hyperoxygenation and hyperinflation on reducing side complications of suctioning ETS Comparison of effect of lung hyper oxygenation and combination of hyper oxygenation and hyperinflation on arterial blood gas and physiological parameters before and after endo tracheal suctioning in critical care patients in Bahonar and Afzalipur hospital in Kerman. 2013-01-20 anticipated 36 Complete https://irct.ir/trial/12743 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Crossover, Purpose: Prevention, Other design features: This study was conducted for the first time in the world. N/A Patients admitted to the ICU and complications. Intervention 1: Hyperoxygenation: prior to and after suctioning using 02 flush key on ventilator ,for two minutes, the patient give 02 100%. Intervention 2: Combination of hyperoxygenation and hyperinflation: befor and after suctioning for 2 minutes,pt giving o2 100% by ventilator and Simultaneously tidal volume breathing on a ventilator at a rate of 150% of the base rate was raised, and this after suctioning to 2 minutes were repeated.