The sengstaken tube must be maintain a pressure of _______ to stop bleeding from varices: (A) 20mmHg, (B) 25mmHg, (C) 35mmHg, (D) 45mmHg
Answer is C. If bleeding doesn't stop promptly, the gastric balloon may be inflated to atleast a volume of 300ml, or the esophageal balloon may be inflated to a pressure of 40mmHg Ref: Sabiston 20th edition Pgno : 1438