15 results
Methylmalonic Acid and Homocysteine Levels in Vitamin B12 and Folate Deficiency
 • B12 Deficiency: MMA elevated,
and Folate Deficiency ... • B12 Deficiency ... #B12 #MMA #folate ... #deficiency #VitaminB12 ... #diagnosis #hematology
Diagnosing Vitamin B12 and/or Folate Deficiency

It turns out that simply measuring serum levels of B12 or
and/or Folate Deficiency ... conversion of homocysteine ... Both homocysteine ... #VitaminB12 #Folate ... #Nutrition #Hematology
Anemia - Underproduction Diagnostic Algorithm
 - Iron deficiency anemia
 - Anemia of chronic inflammation
 - Anemia
Algorithm - Iron ... deficiency anemia ... disease - Vitamin B12 ... and/or folate deficiency ... Underproduction #Algorithm #hematology
Algorithm for the evaluation of macrocytic anemia. (RBC = red blood cell; MMA = methylmalonic acid.)
Physicians
deficiency is present ... but undiagnosed, folate ... deficiency. ... #VitaminB12 #Folate ... FolicAcid #MMA #Homocysteine
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Volume (<80 fL) • Iron ... Deficiency • ... (>100 fL) • B12 ... Folate Deficiency ... Algorithm #Causes #Hematology
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
inflammation) • Iron ... deficiency • ... Megaloblastic: Folate ... deficiency, B12 ... Differential #Diagnosis #hematology
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
MCH, MCHC, Serum Iron ... Reticulocytes • Iron ... Deficiency • ... B12/Folate Deficiency ... Algorithm #Causes #Hematology
Causes of Neutropenia with Pancytopenia - Differential Diagnosis Algorithm
Sequestration:
 • Splenomegaly
Marrow Infiltration:
 • Hematologic and non-hematologic
Toxins • Aplastic Anemia ... Myelodysplasia Nutritional ... deficiency: • ... B12/folate/combined ... Algorithm #Causes #Hematology
Pancytopenia - Differential Diagnosis

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

Cancer:
• Leukemia
• Lymphoma

Inflammatory
Diseases: • GATA2 deficiency ... • Fanconi’s anemia ... Antibody-mediated hemolysis Nutritional ... consumption • Vitamin B12 ... • Folate deficiency
Diagnostic Framework for Anemia (Morphological Approach - MCV)
Low MCV - <80fL - "Microcytic"
 • Iron deficiency
Microcytic" • Iron ... deficiency • ... Megaloblastic: Vitamin B12 ... deficiency, Folate ... diagnosis #causes #hematology