14 results
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Causes of Vitamin ... B12 Deficiency ... Intestine: SIBO, Celiac ... disease, IBD, Lymphoma ... infection, B12 malabsorption
Suspected Celiac Disease - Diagnosis Algorithm

Celiac disease suspected:
 • Signs and symptoms of celiac disease
 •
Disease - Diagnosis Algorithm ... disease • Iron-deficiency ... without discernable cause ... Addisons, microscopic colitis ... Inflammatory (IBD
Causes of Fat Malabsorption - Differential Diagnosis
Biliary Duct Obstruction
 • Autoimmune— PBC, PSC
 • Infection— liver
Causes of Fat Malabsorption ... • Autoimmune— Crohn's ... disease, celiac ... Pancreatic lipase deficiency ... disease • IBD
Causes of Chronic Diarrhea - Differential Diagnosis
Osmotic
 • Food/Drink: Lactose intolerance, Artificial sweeteners (e.g. sorbitol, high
Causes of Chronic ... ZE syndrome) Malabsorptive ... "celiac sprue") ... bowel disease (IBD ... , Crohn's disease
Iron Deficiency Anemia - Differential Diagnosis Algorithm

Labs: Ferritin, iron, transferrin, TIBC, TSAT, sTfR

 • Blood loss:
Differential Diagnosis Algorithm ... hemosiderosis • Malabsorption ... - Structural: Celiac ... Tropical sprue, IBD ... Differential #Diagnosis #Algorithm
Causes of Copper Deficiency - Differential Diagnosis
Hereditary: 
 - Menkes disease, familial hypoceruloplasminemia
Decreased / Inadequate Intake:
Causes of Copper ... absorption: - Malabsorption ... disease, ulcerative colitis ... , Crohn's disease ... , Celiac sprue,
Causes of Iron Deficiency - Differential Diagnosis Algorithm
 • Blood loss: GI (cancer, ulcer, IBD), GU
Causes of Iron Deficiency ... cancer, ulcer, IBD ... Low iron diet MALABSORPTION ... of absorption): Celiac ... #Fe #algorithm
Upper and Lower Causes of GI Bleed
Upper:
 • Esophagus: Tear (Mallory Weiss, Boerhaave syndrome), Variceal, Esophagitis,
Upper and Lower Causes ... Inflammatory: Ischemic colitis ... , Infectious colitis ... , UC/Chrons (IBD ... #algorithm
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... Differential Diagnosis Algorithm ... Inflammatory: • IBD ... disorders • Celiac ... malignancy • Iron deficiency
Fatigue and IBD Algorithm
 • 40-50% patients have fatigue despite clinical remission
 • Risk factors: BMI,
Fatigue and IBD ... UC Anemia and IBD ... IDA and active IBD ... fatigue w/ active IBD ... /other causes