Red blood cell transfusion and hemoglobin level on neurological outcome in the first 24 hours of traumatic brain injury

•It is necessary to determine the hemoglobin target in the ICU in patients followed up for traumatic brain injury.•With the appropriate hemoglobin target, unnecessary red blood cell transfer and damage secondary to trauma can be prevented.•The 7 g/dL RBC transfer target accepted is the appropriate transfer target for the first 24 h in patients with TBI.