99 results
Hemolytic Anemia - Differential Diagnosis Algorithm
Hereditary:
 • Peripheral blood smear + DAT + further History
 •
Hemolytic Anemia ... • Peripheral blood ... DAT (-) → G6PD Deficiency ... → Sickle Cell anemia ... anemia (TTP, HUS
Peripheral Blood Smear Analysis
Hypochromia
Megaloblastic Anemia
Schistocytes: Microangiopathic hemolytic anemia (e.g. DIC, TTP, HUS)
Microspherocytes: Autoimmune hemolytic anemia
Sickled red
Peripheral Blood ... Microangiopathic hemolytic ... Microspherocytes: Autoimmune hemolytic ... Bite cells: G6PD deficiency ... #Peripheral #Blood
Differential diagnosis of schistocytes / fragmentation hemolysis:
 • Thrombotic microangiopathies (TMA)
    - TTP
fragmentation hemolysis ... toxin-mediated hemolytic-uremic ... • Severe B12 deficiency ... • Mechanical hemolysis ... anemia" • HELLP
Red Blood Cell (RBC) Morphology Atlas
 • Microcytic - Iron-deficiency anemia, Thalassemia, Sideroblastic anemia, Lead poisoning
Red Blood Cell ( ... Microcytic - Iron-deficiency ... spherocytosis, Hemolytic ... cells - G-6-PD deficiency ... Schistocytes - Hemolytic
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Red Blood Cell ( ... disease, McLeod blood ... Microangiopathic Hemolytic ... spherocytosis, Autoimmune hemolytic ... Cold autoimmune hemolytic
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
the peripheral blood ... deficiencies: Iron deficiency ... Retroperitoneal, Uterine • Hemolysis ... Microangiopathic hemolytic ... , G6PD deficiency
Warm Antibody Autoimmune Hemolytic Anemia 
1) DIAGNOSE AIHA
 • Anemia: macrocytic > normocytic, ↑ reticulocytes
 •
Antibody Autoimmune Hemolytic ... Anemia 1) DIAGNOSE ... AIHA • Anemia ... type ± C3d • Blood ... #Anemia #diagnosis
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Framework for Hemolysis ... Intravascular Hemolysis ... anemia): ... G6PD deficiency) ... diagnosis #hematology #anemia
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
Causes of Anemia ... Bleed • Hemolysis ... Microangiopathic Hemolytic ... Anemias (MAHA) ... • Early Iron Deficiency
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Intravascular Hemolysis ... and RES-mediated hemolysis ... Defects • G6PD deficiency ... • PK deficiency ... anemia