Yu E, Ley SH, Manson JE, Willett W, Satija A, Hu FB, Stokes A
Standard pre-treatment screening includes thyroid ultrasound and labs, kidney function tests, blood sugar assessment, and review of personal and family cancer history
2012 Mar;28(2):16676
James WPT, Caterson ID, Coutinho W, Finer N, Van Gaal LF, Maggioni AP et al
Red flag symptoms that require urgent assessment include: Severe, persistent abdominal pain that is constant or progressively worsening, particularly if localized or associated with abdominal distension Inability to pass stool or gas , especially if accompanied by cramping, bloating, or pain Persistent nausea and vomiting that prevents oral intake or leads to dehydration Abdominal distension with a visibly swollen or tense abdomen Fever in conjunction with abdominal symptoms, which may suggest perforation or peritonitis Blood in stool or vomit , which could indicate mucosal injury or ischemia Bowel obstruction typically presents with colicky abdominal pain, distension, vomiting (which may become feculent in complete obstruction), and obstipation (inability to pass stool or flatus)
