Dr. Michael Chew @mchew85
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GrepMed Gastroenterology-Hepatology Editor, Academic Hospitalist UC Davis Medical Center Internal Medicine, Yale Gastroenterology Fellow '22
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Gastrointestinal Causes of Iron Deficiency Anemia
 • Mass lesions: Carcinoma, Large polyps
 • Inflammatory: Reflux esophagitis,
Gastrointestinal Causes ... of Iron Deficiency ... Anemia • Mass ... or colon ulcer, Celiac ... #Anemia #Causes
5 D's Mnemonic for Causes of Iron Deficiency Anemia (IDA)
Diet - lacking iron, vitamin C, too
of Iron Deficiency ... Anemia (IDA) Diet ... Absorption - Diarrhea, Celiac ... Blood loss) - GI bleeding ... #Anemia #Causes
Causes of Low Vitamin B12 Levels
Low vitamin B12 intake - Vegetarianism, chronic alcoholism and older people
Autoimmune
Causes of Low Vitamin ... Autoimmune - Pernicious anaemia ... Crohn 's disease, coeliac ... Transcobalamin II deficiency ... #VitaminB12 #deficiency
Celiac Disease - Diagnosis Algorithm
IgA TTG has high sensitivity and specificity of ~ 98% and is
Celiac Disease - ... Diagnosis Algorithm ... IgA deficiency affects ... Ruling out celiac ... Disease #Diagnosis #Algorithm