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 ... Intestine: SIBO, Celiac ... disease, IBD, Lymphoma ... #B12 #Deficiency
Causes of Low Vitamin B12 Levels
Low vitamin B12 intake - Vegetarianism, chronic alcoholism and older people
Autoimmune
Causes of Low Vitamin ... B12 Levels Low ... vitamin B12 intake ... , coeliac disease ... low #cobalamin #differential
Causes of Iron Deficiency
 • Diet: ↓ Intake, e.g. vegan, Malnutrition, Polyphenol / tannins, ↓ Vitamin
Causes of Iron Deficiency ... Drugs, H pylori, Celiac ... : IBD, Chronic disease ... #Causes #differential ... #diagnosis #anemia
Diagnostic Framework for Anemia (Morphological Approach - MCV)
Low MCV - <80fL - "Microcytic"
 • Iron deficiency
chronic kidney disease ... Megaloblastic: Vitamin ... B12 deficiency, ... morphologic #mcv #differential ... #diagnosis #causes
Differential Diagnosis and Evaluation of Hyponatremia:
1) Identification of onset (acute vs. chronic)
2) Presence of symptoms (HA,
and Evaluation ... , liver, renal disease ... history #Diagnosis #EM ... #IM #Nephro #Hyponatremia ... #Algorithm #Ddxof
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
Vitamin B12 (Cobalamin ... • Common Causes ... related to IBD, celiac ... disease, other ... , can consider IM
Causes of False Elevation and Reduction in HbA1c

== False Elevation ==
Decreased RBC turnover 
• Iron, B-12,
Causes of False ... , or folate deficiency ... • Hemolytic anemia ... End-stage renal disease ... glycosylation • Vitamin
Causes of Anemia in Cirrhosis - Differential Diagnosis Framework
LOW RETIC INDEX - ↓ PRODUCTION
 • Vitamin
Causes of Anemia ... in Cirrhosis - Differential ... PRODUCTION • Vitamin ... B12 deficiency, ... Peptic ulcer disease
Myelodysplastic Syndromes (MDS)

What?
Myelodysplastic syndromes are a group of disorders caused by blood cells that are poorly
Myeloproliferative Disease ... • Nutritional: vitamin ... B12 or folic acid ... deficiency • Exposure ... blood count with differential