Focused Ultrasound in Septic Shock Patients

The investigators hypothesize that lung ultrasound and echocardiography will benefit the septic shock patients by making the treatment more precisely and rapidly. Septic shock patients from multicenter will be enrolled in the study. They will be randomly divided into two groups. The routine treatment group will receive routine treatment according to the SSC guideline. The study group will receive additional ultrasound examination, which will decide the improvement of therapy. Therapy change based on ultrasound results and the prognosis will be recorded.