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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Health Maintenance Checklist for Adult IBD Patients

Vaccine Preventable Diseases: Influenza (inactive), Pneumococcal PCV13, Pneumococcal PPSV23, Tdap,
, Skin screen, Colonoscopy ... #inflammatory #bowel
Normal Colonic Diameters
Normal bowel caliber can be remembered using the 3-6-9 rule:
 - Small bowel: <3
Diameters Normal bowel ... rule: - Small bowel ... 3 cm - Large bowel ... Colonic #Diameters #diagnosis
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
patients with anemia, diagnose ... serology first Small bowel ... identification of small bowel ... Evaluation #workup #diagnosis
Causes of Small Bowel Bleeding - Differential Diagnosis
Common Causes:
 • Under age 40 years: Inflammatory Bowel
Causes of Small Bowel ... - Differential Diagnosis ... : Inflammatory Bowel ... purpura, Small bowel ... #Differential #Diagnosis
Irritable Bowel Syndrome (IBS) - Pathophysiology, Diagnosis and Management Algorithm
Risk factors: Previous acute enteric infection, Female
Irritable Bowel ... Pathophysiology, Diagnosis ... IBS #Irritable #Bowel ... Pathophysiology #Diagnosis
Carcinoid Syndrome - Pathophysiology, Signs and Symptoms
Symptoms: Flushing, diarrhea, palpitations, bronchospasm
Complications: Carcinoid heart, mesenteric fibrosis, pellagra,
neuropsychological disorders ... Signs #Symptoms #Diagnosis
Drug Induced Liver Injury (DILI) - Stepwise Diagnosis Algorithm
DILI suspicion
Features toxic aetiology: Skin involvement, Kidney injury,
DILI) - Stepwise Diagnosis ... Hepatic vascular disorder ... Liver #Injury #Diagnosis
Algorithm regarding the diagnosis and treatment of Hereditary Hemochromatosis HH. 

Step 1: In the patient with
regarding the diagnosis ... and hematologic disorders ... hemochromatosis #algorithm #diagnosis
Causes of a low fecal elastase
Abnormal pancreatic imaging:
Chronic pancreatitis, Pancreatic tumours including cystic disease, Pancreatic resection,
diarrhoea, Irritable bowel ... , Inflammatory bowel ... disease, Small bowel ... Rheumatological disorders ... #differential #diagnosis
Ileal Pouch Disorders - Differential Diagnosis
 • Surgical/Mechanical: Anastomotic leak, Pelvic sepsis, Sinus, Fistula, Strictures, Efferent
Ileal Pouch Disorders ... - Differential Diagnosis ... Small bowel bacterial ... #Ileal #Pouch #Disorders ... #Differential #Diagnosis