BACKGROUND: Sepsis/septic shock is a life-threatening condition that requires prompt and effective treatment. Noradrenaline is a widely used vasopressor to manage septic shock, but its optimal dosage remains unclear. This study aimed to investigate the effects of noradrenaline doses on the prognosis of patients with sepsis/septic shock and identify the influencing factors for patient survival. METHODS: A retrospective study was conducted on 126 patients with sepsis/septic shock who received noradrenaline treatment in the intensive care unit (ICU). Patients were divided into survival (n=91) and death (n=35) groups. Clinical data, laboratory results, and noradrenaline doses were collected and compared between the two groups.