60 results
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Causes of Vitamin B12 ... Deficiency - Cobalamin ... Stomach: Pernicious anemia ... #Deficiency #Cobalamin ... #differential #
Causes of Low Vitamin B12 Levels
Low vitamin B12 intake - Vegetarianism, chronic alcoholism and older people
Autoimmune
of Low Vitamin B12 ... Levels Low vitamin B12 ... Autoimmune - Pernicious anaemia ... #low #cobalamin ... #differential #
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
Vitamin B12 (Cobalamin ... ) Deficiency Etiology ... cobalamin. ... wt loss • If anemia ... #Cobalamin #Deficiency
Anemia - Underproduction Diagnostic Algorithm
 - Iron deficiency anemia
 - Anemia of chronic inflammation
 - Anemia
Algorithm - Iron deficiency ... anemia - Anemia ... disease - Vitamin B12 ... and/or folate deficiency ... hematology #diagnosis #differential
Clinically Important Vitamins and Vitamin Deficiency States
Fat-soluble Vitamins: 
 • Vitamin A - Xerophthalmia, night blindness,
Vitamins and Vitamin Deficiency ... • Thiamine B1 ... gestation • Vitamin B12 ... #Vitamins #Deficiency ... #differential #
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
- Differential ... inflammation) • Iron deficiency ... Megaloblastic: Folate deficiency ... , B12 deficiency ... MCV #Algorithm #Differential
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Volume (MCV) - Differential ... (>100 fL) • B12 ... Deficiency • ... Folate Deficiency ... Classification #Differential
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Volume (MCV) - Differential ... • Dietary Deficiency ... - Low Serum B12 ... and Folate Deficiency ... #elevatedMCV #Differential
Approach to Hypoproliferative Macrocytic Anemia

 • 812, Folate Deficiency
 • MDS+
 • Hypothyroid
 • Liver Disease
Hypoproliferative Macrocytic Anemia ... • 812, Folate ... Deficiency • ... #Macrocytic #Anemia ... #differential #
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
RBC: Pyridoxine deficiency ... Thalassemia, Iron deficiency ... Macrocytic RBC: Vitamin B12 ... or Folate deficiency ... RBC #Morphology #differential