29 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 ... #Cobalamin #differential
Causes of Pediatric Diarrhea - Differential Diagnosis Algorithm
Infectious:
 • Viral
 • Bacterial
 • Parasitic
Malabsorption:
 • Lactase
Causes of Pediatric ... Diarrhea - Differential ... Cystic Fibrosis • Celiac ... Disease • Primary ... #Differential #
Suspected Celiac Disease - Diagnosis Algorithm

Celiac disease suspected:
 • Signs and symptoms of celiac disease
 •
diseaseIron-deficiency ... without discernable cause ... microscopic colitis Differential ... Inflammatory (IBD ... #Algorithm #gastroenterology
Chronic Diarrhea Differential Diagnosis
 • Inflammatory, Infectious: Recurrent C. diff, Giardiasis
 • Inflammatory, Non-infectious: IBD, Ischemia,
Non-infectious: IBD ... Bacterial overgrowth, Celiac ... disease, Pancreatic ... #Diagnosis #causes ... #gastroenterology
Causes of Iron Deficiency
 • Inadequate Intake: Vegetarian/vegan diet, Malnutrition
 • Increased Body Needs: Infants/preschoolers, Pregnancy,
Causes of Iron Deficiency ... Bleeding, Edema, Celiac ... Disease (IBD, cancer ... ) #Iron #Deficiency ... #differential #
Causes of Iron Deficiency
 • Diet: ↓ Intake, e.g. vegan, Malnutrition, Polyphenol / tannins, ↓ Vitamin
Causes of Iron Deficiency ... Inflammation: IBD ... , Chronic disease ... #Deficiency #Causes ... #differential #
Causes of Copper Deficiency - Differential Diagnosis
Hereditary: 
 - Menkes disease, familial hypoceruloplasminemia
Decreased / Inadequate Intake:
Causes of Copper ... Deficiency - Differential ... include inflammatory bowel ... , Celiac sprue, ... supplementation) or iron
Causes of Iron Deficiency - Differential Diagnosis Algorithm
 • Blood loss: GI (cancer, ulcer, IBD), GU
Causes of Iron Deficiency ... - Differential ... cancer, ulcer, IBD ... of absorption): Celiac ... #Deficiency #Differential
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
tests Test for celiac ... disease with serology ... first Small bowel ... identification of small bowel ... workup #diagnosis #gastroenterology
Iron Deficiency Anemia - Differential Diagnosis Algorithm

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

 • Blood loss:
Iron Deficiency ... Anemia - Differential ... - Structural: Celiac ... disease, Tropical ... sprue, IBD, Bypass