Lung Ultrasound in Procalcitonin- Guided Antibiotic Discontinuation in Ventilator Associated Pneumonia

We will evaluate the role of lung ultrasound on the duration of antibiotics, we hypothesize that ultrasound imaging may have a role, will be correlated with, procalcitonin (PCT). The created database will help in establishing conclusion and recommendations that will help to improve the antibiotics duration and decrease the resistance.