11 results
Hemolytic Anemias - Differential Diagnosis Algorithm

Signs of anemia and hemolysis:
 • ↓ Haptoglobin
 • ↑ LDH
Hemolytic Anemias ... - Differential ... of anemia and hemolysis ... Anemias (AIHAs) ... Macroangiopathic, Microangiopathic
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Framework for Hemolysis ... Intravascular Hemolysis ... hemolytic anemia ... purpura (TTP), Hemolytic ... • Intrinsic RBC
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Intravascular Hemolysis ... and RES-mediated hemolysis ... Intravascular - Hemolysis ... immune-complex hemolytic ... malformations #Hemolysis
Autoimmune Hemolytic Anemia (AIHA) - Differential Diagnosis Table

Warm AIHA (48-70%)
Cold AHA (16-32%)
 • Donath-Landsteiner HA (paroxysmal
Autoimmune Hemolytic ... Differential Diagnosis ... Table Warm AIHA ... #Autoimmune #Hemolytic ... #Table #hematology
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
Volume (MCV) - Differential ... Bleed • Hemolysis ... Fragments • Microangiopathic ... Hemolytic Anemias ... Algorithm #Causes #Hematology
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Hemolysis - Differential ... Autoimmune: Warm AIHA ... Urobilinogen #Hemolysis ... #Differential # ... Diagnosis #hematology
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Schistocyte: Microangiopathic ... Hemolytic Anemia ... spherocytosis, Autoimmune hemolytic ... Cold autoimmune hemolytic ... #differential #
Drugs Implicated in Hemolytic Anemia
 • Hapten (Drug binding to RBC membrane): Penicillin, Cephalosporin, Tetracycline, Tolbutamide,
Implicated in Hemolytic ... (induction of AIHA ... #medications #Hemolytic ... #Anemia #differential ... #pharmacology #table
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
transform into a RBC ... Retroperitoneal, Uterine • Hemolysis ... : Autoimmune, Microangiopathic ... hemolytic anemia ... #anemia #differential
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
women • 15% of AIHA ... Diagnosis: • hemolytic ... • Compensated hemolysis ... intravascular hemolysis ... agglutinin #disease #hemolytic