RT Book, Section A1 Attridge, Rebecca L. A2 Attridge, Rebecca L. A2 Miller, Monica L. A2 Moote, Rebecca A2 Ryan, Laurajo SR Print(0) ID 57287496 T1 Chapter 12. Stress Ulcer Prophylaxis T2 Internal Medicine: A Guide to Clinical Therapeutics YR 2013 FD 2013 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-174580-2 LK accesspharmacy.mhmedical.com/content.aspx?aid=57287496 RD 2024/04/20 AB Stress ulcer → superficial lesion of mucosal layer of the stomach after traumatic event; can develop into deeper lesion with significant gastroduodenal bleeding (may occur within 1st 24h of ICU admission)Etiology: ↓ mucosal blood flow → ischemia → acid hypersecretion; due to excessive gastrin stimulation of parietal cells & alteration of normal protective mechanisms (epithelial turnover in gastric mucosa & change in mucus & bicarbonate secretion)Frequency of clinically important bleeding: 1–5%