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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Causes of Severe Acute Liver Injury
 - Ichemic hepatitis
 - Acute biliary obstruction
 - Drug-Induced liver
Causes of Severe ... Hemochromatosis - Primary ... biliary cholangitis ... -1 antitrypsin deficiency ... #Differential #
Causes of Low Vitamin B12 Levels
Low vitamin B12 intake - Vegetarianism, chronic alcoholism and older people
Autoimmune
Causes of Low Vitamin ... Autoimmune - Pernicious anaemia ... syndrome Food-bound cobalamin ... #low #cobalamin ... #differential #
Gastrointestinal Causes of Iron Deficiency Anemia
 • Mass lesions: Carcinoma, Large polyps
 • Inflammatory: Reflux esophagitis,
Gastrointestinal Causes ... of Iron Deficiency ... Anemia • Mass ... #Anemia #Causes ... #differential #
Drug Induced Liver Injury (DILI) - Stepwise Diagnosis Algorithm
DILI suspicion
Features toxic aetiology: Skin involvement, Kidney injury,
Stepwise Diagnosis Algorithm ... for alternative causes ... biliary cholangitis ... , Primary sclerosing ... cholangitis Consider
Common Etiologies of Cirrhosis

Inflammation

 - Hepatitis B (15 percent)

 - Hepatitis C (47 percent)

 - Schistosomiasis
congenital - Primary ... α1-antitrypsin deficiency ... #Diagnosis #Differential ... Hepatology #Cirrhosis #Causes
5 D's Mnemonic for Causes of Iron Deficiency Anemia (IDA)
Diet - lacking iron, vitamin C, too
D's Mnemonic for Causes ... of Iron Deficiency ... Anemia (IDA) Diet ... menses, pregnancy, urinary ... #Anemia #Causes