13 results
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Corpuscular Volume (MCV ... ) - Differential ... • Dietary Deficiency ... - Low Serum B12 ... #Macrocytosis #
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
- Differential ... Reticulocytes, MCV ... • B12/Folate ... DeficiencyAplastic ... #Classification
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
- Differential ... inflammation) • Iron deficiency ... Non-hemolytic: ACD, Aplastic ... , B12 deficiency ... #Differential #
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Corpuscular Volume (MCV ... ) - Differential ... Diagnosis Algorithm Low ... (>100 fL) • B12 ... #MCV #Classification
Diagnostic Framework for Anemia (Morphological Approach - MCV)
Low MCV - <80fL - "Microcytic"
 • Iron deficiency
) Low MCV - <80fL ... Megaloblastic: Vitamin B12 ... deficiency, Folate ... deficiency • ... #differential #
Aplastic Anemia - Overview

Who?
• M = F
• 3 peaks:	1) Childhood	2) 15-25 years	3) >60 years

What?
• Aplastic anemia
Aplastic Anemia ... • Aplastic anemia ... , GATA2 deficiency ... may result from low ... hematology #diagnosis #management
Causes of Anemia with Low Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased Heme Synthesis or
with Low Mean Corpuscular ... Differential Diagnosis ... RBC>13 • Iron Deficiency ... #Macrocytosis # ... elevatedMCV #Differential
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
approximately how ... loss), Vitamin B12 ... marrow failure: Aplastic ... , G6PD deficiency ... #differential #
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
) Deficiency Etiology ... hypersegmented neutrophils, macrocytosis ... - Low Vit B12 ... #Cobalamin #Deficiency ... #diagnosis #management
Fatigue and IBD Algorithm
 • 40-50% patients have fatigue despite clinical remission
 • Risk factors: BMI,
Crohn's > UC Anemia ... If persistent macrocytosis ... Receptor (sTfR) to differentiate ... restricted diet/deficiency ... Algorithm #diagnosis #management