IRCT20200813048398N1 IRCT 2020-08-22 Ahvaz University of Medical Sciences The effect of feeding on the duration of patient separation from mechanical ventilation The effect of planned feeding on the duration of patient separation from mechanical ventilation and stay in the intensive care unit 2020-09-09 anticipated 42 Complete https://irct.ir/trial/50332 interventional Randomization: Not randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Diagnostic. N/A The effect of planned feeding on the duration of patient isolation from mechanical ventilation and the length of stay in the intensive care unit. Intervention 1: Intervention group: In the intervention group to supply energy the standard EnteraMeal solution will be used which has one kilocalorie of energy per milliliter and the distribution of macronutrients as 14% energy from protein, 33% energy from fat and 54% energy from carbohydrates. To prepare 150 ml, 33 g (one measure) of EnteraMeal powder is poured into 120 ml of cooled boiled water and this solution has one kilocalorie per ml of energy. Feeding is performed by Intragastric nasogastric tube by bolus infusion method with a 60 cc syringe which to reach the calculated energy in 48-72 hours Start with 50 cc and add 30 cc every three hours. The schedule of prescribing hours is as follows: 6, 9, 12, 15, 18 and 21. Intervention 2: Control group: In the control group, hospital gavage fluid will be used without interfering in it’s preparation method Which is sent to the Laboratory of Nutrition Department of Paramedical School for analysis of macronutrients and energy. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is no need to mention them in the trial.