9 results
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Causes of Vitamin ... B12 Deficiency ... : SIBO, Celiac disease ... , IBD, Lymphoma, ... Stomach: Pernicious anemia
Fatigue and IBD Algorithm
 • 40-50% patients have fatigue despite clinical remission
 • Risk factors: BMI,
Fatigue and IBD ... Crohn's > UC Anemia ... and IBD Pearls: ... IDA and active IBD ... /other causes
Causes of Iron Deficiency
 • Diet: ↓ Intake, e.g. vegan, Malnutrition, Polyphenol / tannins, ↓ Vitamin
Causes of Iron Deficiency ... Polyphenol / tannins, ↓ Vitamin ... Inflammation: IBD ... , Chronic disease ... #diagnosis #anemia
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Inflammatory: • IBD ... disorders • Celiac disease ... malignancy • Iron deficiency ... anemia #Thrombocytosis ... #Causes #Hematology
Iron Deficiency Anemia - Differential Diagnosis Algorithm

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

 • Blood loss:
Anemia - Differential ... Diagnosis Algorithm ... Structural: Celiac disease ... Tropical sprue, IBD ... #ferritin #hematology
Suspected Celiac Disease - Diagnosis Algorithm

Celiac disease suspected:
 • Signs and symptoms of celiac disease
 •
- Diagnosis Algorithm ... • Iron-deficiency ... anemia unresponsive ... without discernable cause ... Inflammatory (IBD
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Differential Diagnosis Algorithm ... Acute hemolysis, deficiency ... anemia, Rebound ... Vasculitides, IBD ... , Celiac disease
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
Vitamin B12 (Cobalamin ... ) Deficiency Etiology ... • Common Causes ... diarrhea related to IBD ... , celiac disease
Occult and Lower Gastronintestinal Bleed - Differential Diagnosis Algorithm

Occult (Stool + Occult blood and/or iron deficiency
Differential Diagnosis Algorithm ... blood and/or iron deficiency ... anemia) • Colorectal ... , asymptomatic IBD ... #Causes