20 results
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
(usually IgG) (e.g ... (usually IgM) (e.g ... lymphoproliferative disorders ... deficiencies (e.g ... #diagnosis #hematology
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
Volume (MCV) - Differential ... • Secondary (e.g ... Bleed • Hemolysis ... #Differential # ... Algorithm #Causes #Hematology
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Chemotherapy (e.g ... Microangiopathic Hemolytic ... Unstable hemoglobin disorders ... RBC #Morphology #differential ... #diagnosis #hematology
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
- Differential ... -100): • Non-hemolytic ... , CKD • Hemolytic ... aciduria, Drugs (e.g ... #Diagnosis #hematology
Causes of Splenomegaly - Differential Diagnosis Algorithm
Infectious
 • Bacterial
 • Viral (EBV)
 • Parasitic
 • Fungal
Congestive
• Thrombus (e.g ... Myeloproliferative disorders ... (eg. polycythemia ... Serum Sickness Hemolytic ... Algorithm #Causes #Hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... Consider RBC membrane disorder ... #Anemia #Differential ... Diagnosis #Algorithm #workup ... #hematology #testing
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
malignancies • Anemia ... iron deficiency, hemolysis ... Chronic inflammatory disorders ... (e.g. autoimmune ... Diagnosis #Causes #hematology
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
infiltration (e.g ... Marrow suppression (e.g ... RBC defects (e.g ... Production #Index #hematology ... #anemia #differential
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Volume (MCV) - Differential ... • Bleeding • Hemolysis ... Chronic Disease (e.g ... Classification #Differential ... Algorithm #Causes #Hematology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
- Differential ... Diagnosis and Workup ... function test, ANA (e.g ... changes), high MCV anemia ... #hematology