9 results
Causes of Low Vitamin B12 Levels
Low vitamin B12 intake - Vegetarianism, chronic alcoholism and older people
Autoimmune
Autoimmune - Pernicious anaemia ... pylori-associated gastritis Surgery ... #low #cobalamin ... #differential # ... diagnosis
Iron Deficiency Anemia - Differential Diagnosis Algorithm

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

 • Blood loss:
Anemia - Differential ... Diagnosis Algorithm ... bleed, Epistaxis, Surgery ... #Anemia #Differential ... #Diagnosis #Algorithm
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
) Deficiency Etiology ... intrinsic factor, IF) Clinical ... , can consider IM ... consider other diagnosis ... #Deficiency #diagnosis
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Diagnosis Algorithm ... Damage: • Post-op surgery ... malignancy • Iron deficiency ... anemia #Thrombocytosis ... Diagnosis #Algorithm
Hypocalcemia - Differential Diagnosis Algorithm
 • Low Serum Mg: GI losses, Renal losses, Alcoholism, Malnutrition, Drug-Induced
Diagnosis Algorithm ... Malabsorption, Vit D deficiency ... (i.e. thyroid surgery ... chelates Ca2+) Emory IM ... #Diagnosis #Algorithm
Hypoglycemia - Differential Diagnosis Algorithm
Fasting Hypoglycemia:
 • Excess Insulin
 • Medications (e.g. Insulin Secretagogues, ß-Adrenergic Antagonists,
Hypoglycemia - Differential ... Diagnosis Algorithm ... setting of Gastric Surgery ... Catecholamine Deficiency ... #Diagnosis #Algorithm
Fatigue and IBD Algorithm
 • 40-50% patients have fatigue despite clinical remission
 • Risk factors: BMI,
fatigue despite clinical ... Crohn's > UC Anemia ... Receptor (sTfR) to differentiate ... restricted diet/deficiency ... #diagnosis #management
Anosmia / Smell Dysfunction - Differential Diagnosis Algorithm
Nasal Obstruction/ URTI:
 • Septal Deviation
 • Allergic Rhinitis
Dysfunction - Differential ... Diagnosis Algorithm ... Body • Nasal Surgery ... • Zinc Deficiency ... #Diagnosis #Algorithm
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis

The most common causes of hyperlactatemia are usually:
Lactic Acidosis - Differential ... Diagnosis The ... regional ischemia, surgery ... 30mmHg) - Severe anemia ... effect - Thiamine deficiency