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 gastroenterology hepatology deficiency algorithm gastrointestinal iron liver abnormal acute albumin analysis ascites bleeding cirrhosis cobalamin diseases disorders elastase enzymes
Causes of Low Vitamin B12 Levels Low vitamin B12 intake - Vegetarianism, chronic alcoholism and older people Autoimmune
Autoimmune - Pernicious anaemia ... insufficiency, Crohn 's disease ... , coeliac disease ... #cobalamin #differential ... #diagnosis
Gastrointestinal Causes of Iron Deficiency Anemia • Mass lesions: Carcinoma, Large polyps • Inflammatory: Reflux esophagitis,
Iron Deficiency Anemia ... sprue, Whipple's disease ... ulcers, Crohn's disease ... #Causes #differential ... #diagnosis
Gastrointestinal Evaluation of Iron Deficiency Anemia In patients with anemia, diagnose iron deficiency if: • Ferritin <
Iron Deficiency Anemia ... patients with anemia ... , diagnose iron ... Test for celiac disease ... Evaluation #workup #diagnosis
Gallstone Diseases 1. Asymptomatic Stones 75% 2. Biliary Pain 20% 3. Acute Cholecystitis 10% 4. Mirizzi's Syndrome < 0.1% 5. Cholangitis/
Gallstone Diseases ... #Gallstone #Diseases ... #differential # ... diagnosis #causes
Common Etiologies of Cirrhosis Inflammation - Hepatitis B (15 percent) - Hepatitis C (47 percent) - Schistosomiasis
Nonalcoholic fatty liver disease ... - Wilson disease ... Venoocclusive disease ... 14 percent) #Diagnosis ... #Differential #
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 Causes of Severe Acute Liver Injury - Ichemic hepatitis - Acute biliary obstruction - Drug-Induced liver
hepatitis - Wilson disease ... Acute #Causes #Differential ... #Hepatology #Diagnosis
Deciphering the SAAG - Serum to Ascites Albumin Gradient Ascites is either made in the liver sinusoid
the blood The diseased ... oncotic pressure Low ... Matherly @liverprof #Diagnosis ... Interpretation #Differential
Causes of Small Bowel Bleeding - Differential Diagnosis Common Causes: • Under age 40 years: Inflammatory Bowel
Bowel Bleeding - Differential ... Diagnosis Common ... Inflammatory Bowel Disease ... SmallBowel #Bleeding #Differential ... #Diagnosis #Causes
Abnormal liver function tests algorithm. This figure details the initial response to abnormal liver blood tests.
Areas of diagnostic ... alcohol-related liver disease ... non-alcoholic fatty liver disease ... Liver #Enzymes #Differential ... #Diagnosis
Causes of a low fecal elastase Abnormal pancreatic imaging: Chronic pancreatitis, Pancreatic tumours including cystic disease, Pancreatic resection,
Causes of a low ... including cystic disease ... fecal #elastase #low ... #differential # ... diagnosis #causes
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