23 results
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Causes of Vitamin ... B12 Deficiency ... Stomach: Pernicious anemia ... #B12 #Deficiency ... #Cobalamin #differential
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 ... antagonists #VitaminB12 ... #cobalamin #differential
Algorithm for the evaluation of macrocytic anemia. (RBC = red blood cell; MMA = methylmalonic acid.)
Physicians
Hemorrhage or hemolysis ... the most likely cause ... B12 deficiency ... deficiency. ... #VitaminB12 #Folate
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Causes of Anemia ... Volume (MCV) - Differential ... • Bleeding • Hemolysis ... (>100 fL) • B12 ... #MCV #Classification
Pancytopenia - Differential Diagnosis

Congenital Diseases:
• GATA2 deficiency
• Fanconi’s anemia
• Wiskott-Aldrich syndrome
• Ribosomopathy or telomeropathy

Cancer:
• Leukemia
• Lymphoma

Inflammatory
Pancytopenia - Differential ... • Fanconi’s anemia ... Antibody-mediated hemolysis ... consumption • Vitamin ... B12 • Folate deficiency
Causes of B12 deficiency. 

This great diagram shows normal absorption and outlines most possible causes. At
Causes of B12 deficiency ... -deficient diet. ... The vitamin B12 ... #VitaminB12 #deficiency ... #Differential #
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
Vitamin B12 (Cobalamin ... ) Deficiency Etiology ... • Common Causes ... @taleanski #Vitamin ... #B12 #Cobalamin
The Inhibited Pathway caused by N2O, leading to a decrease in the active form of Vitamin
Inhibited Pathway caused ... - Vitamin B12 ... B12 deficiency. ... of pernicious anemia ... #NitrousOxide #VitaminB12
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Macrocytic RBC: Vitamin ... B12 or Folate deficiency ... Microangiopathic Hemolytic ... Cold autoimmune hemolytic ... RBC #Morphology #differential
Causes of False Elevation and Reduction in HbA1c

== False Elevation ==
Decreased RBC turnover 
• Iron, B-12,
Causes of False ... , or folate deficiency ... blood loss • Hemolytic ... anemia • Splenomegaly ... glycosylation • Vitamin