IRCT20180107038251N2 IRCT 2019-07-20 Arak University of Medical Sciences Effect of nebulized eucalyptus on arterial blood gas and physiologic indexes Effect of nebulized eucalyptus on arterial blood gas and physiologic indexes of ventilated patients:A Double-Blind Randomized Clinical Trial 2014-08-11 anticipated 70 Complete https://irct.ir/trial/40368 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Used, Assignment: Parallel, Purpose: Supportive, Randomization description: Simple Randomization with tossing a coin method we used from this method for creating random sequence, so that we considered one of study groups (intervention) as heads and other group (control) as tails and based on sample size we threw the coin and subjects were randomly assigned to two groups, Blinding description: For elimination of the possibility of any probable bias due to the knowledge of study Outcome evaluator about the type of treatment we performed a single blind study. Eucalyptus and placebo (normal saline) had the same appearance on the nebulizer device and This device was delivered vapors directly to patient as a fully enclosed enclosure and the evaluator did not notice the smell of eucalyptus in the room ,so Outcome evaluator did not have any knowledge about the type of treatment. 3 Arterial blood gases analysis in mechanical ventilated patients. Intervention 1: Intervention group: Four ml of 5% eucalyptus made by medicinal herbs department in arak university will be diluted in 10 ml normal saline and will be nebulized in about 20 minutes through mechanical ventilator. This work will be performed every 8 hours until extubation. Intervention 2: Control group: Ten ml normal saline will be nebulized in about 20 minutes through mechanical ventilator. This work will be performed every 8 hours until extubation. No - There is not a plan to make this available Justification or reason for not sharing IPD is No more information