23 results
Causes of Iron Deficiency
 • Inadequate Intake: Vegetarian/vegan diet, Malnutrition
 • Increased Body Needs: Infants/preschoolers, Pregnancy,
Causes of Iron Deficiency ... Elite athletes • Chronic ... Loss (without anaemia ... Pylori • Hookworm infection ... Inflammatory Disease (IBD
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... Myelofibrosis Infectious ... Inflammatory: • IBD ... malignancy • Iron deficiency ... anemia #Thrombocytosis
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Causes of Vitamin ... B12 Deficiency ... Celiac disease, IBD ... Stomach: Pernicious anemia ... gastrectomy, H. pylori infection
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
Short Stature - Differential Diagnosis Algorithm
Normal Variant, Normal Puberty Onset (BA = CA)
 • Familial Short
Celiac, IBD) • ... CRF) • Infection ... Chronic UTI) • ... Cystic Fibrosis, CHF ... endocrinology #causes
Causes of Iron Deficiency
 • Diet: ↓ Intake, e.g. vegan, Malnutrition, Polyphenol / tannins, ↓ Vitamin
Causes of Iron Deficiency ... Inflammation: IBD ... , Chronic disease ... #Causes #differential ... #diagnosis #anemia
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
feel weak": • Infectious ... CV/Resp/Heme: CHF ... valves, COPD, ILD ... , OSA, pHTN, Anemia ... Differential #Diagnosis #causes
Acute and Chronic Causes of Dyspnea - Differential Diagnosis
Pulmonary/Chest Wall:
 • Acute: Trauma, COPD exacerbation, Asthma
Asthma attack, ILD ... , COPD, CTEPH, ILD ... decompensated CHF ... : Anemia, Arrhythmia ... , Anaphylaxis, Infection
Causes of Fat Malabsorption - Differential Diagnosis
Biliary Duct Obstruction
 • Autoimmune— PBC, PSC
 • Infection— liver
Causes of Fat Malabsorption ... • Autoimmune— Crohn's ... - Acquired • Chronic ... Pancreatic lipase deficiency ... Celiac disease • IBD
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Interstitium • ILD ... • CHF • Sarcoidosis ... Pulmonary - Other • Anemia ... Diagnosis #Algorithm #Causes