11 results
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
Gastrointestinal Evaluation ... with anemia, diagnose ... inflammation or chronic ... tests Test for celiac ... disease with serology
Causes of Iron Deficiency
 • Inadequate Intake: Vegetarian/vegan diet, Malnutrition
 • Increased Body Needs: Infants/preschoolers, Pregnancy,
Elite athletes • Chronic ... Loss (without anaemia ... ): GI cancers, Donations ... Bleeding, Edema, Celiac ... #differential #diagnosis
Iron Deficiency Anemia - Differential Diagnosis Algorithm

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

 • Blood loss:
Anemia - Differential ... Diagnosis Algorithm ... • Blood loss: GI ... - Structural: Celiac ... disease, Tropical
Causes of Iron Deficiency
 • Diet: ↓ Intake, e.g. vegan, Malnutrition, Polyphenol / tannins, ↓ Vitamin
Drugs, H pylori, Celiac ... Inflammation: IBD, Chronic ... disease (↑ hepcidin ... #differential #diagnosis ... #anemia #nutrition
Causes of Iron Deficiency - Differential Diagnosis Algorithm
 • Blood loss: GI (cancer, ulcer, IBD), GU
- Differential Diagnosis ... • Blood loss: GI ... kidney disease, ... of absorption): Celiac ... disease, Bypass
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
- Differential Diagnosis ... disorders • Celiac ... disease Tissue ... malignancy • Iron ... deficiency anemia
Chronic Abdominal Pain Causes - Differential Diagnosis Framework

Many patients with chronic abdominal pain have had prior
- Differential Diagnosis ... have had prior evaluations ... bowel syndrome • Celiac ... ischemia • GI ... poisoning • Celiac
Chronic Diarrhea - Workup
Osmotic:
 • Consider food diary and trial avoiding certain foods or meds, Consider
Chronic Diarrhea ... certain foods or meds ... Consider testing for celiac ... disease Inflammatory ... differential #testing #evaluation
Celiac Disease - Clinical Manifestations
Gastrointestinal Manifestations: 
 • Diarrhea, Loose stools, Dyspepsia, Flatulence, Chronic abdominal pain,
Celiac Disease - ... , Hepatitis • Iron-deficiency ... anaemia • Arthralgia ... #Disease #signs ... #symptoms #diagnosis
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
skin pallor • GI ... related to IBD, celiac ... disease, other ... total body stores Evaluation ... symptoms • P/E - GI