Kenneth John, MD on Instagram: "Gastric Ultrasound is growing in utility, particularly in the preoperative settings. With the rise of patients taking GLP-1 receptor agonists, such as Ozempic and Wegovy, we have adapted our preoperative fasting guidelines to ensure that these patients have an empty stomach before we put them to sleep. The typical instructions for these patients is to follow a clear liquid diet 24 hours prior to their procedure, and then stop drinking fluids 4 hours prior to their