Normal lower oesophageal sphincter pressure is
The normal lower oesophageal sphincter is 3-4 cm in length and has a pressure of 10-25 mmHgThe LOS is a zone of relatively high pressure that prevents gastric contents from refluxing into the lower oesophagusRef: Bailey and Love 27e pg: 1068
5-8 mm of Hg
10-25 mm of Hg
25 - 40 mm of Hg
> 40 mm of Hg
G.I.T