80 results
Autoimmune Hemolytic Anemia (AIHA) - Differential Diagnosis Table

Warm AIHA (48-70%)
Cold AHA (16-32%)
 • Donath-Landsteiner HA (paroxysmal
Autoimmune Hemolytic ... Anemia (AIHA) - ... Table Warm AIHA ... Agglutinin Disease ... #Table #hematology
Warm vs Cold Autoimmune Hemolytic Anemia
Warm Autoimmune Hemolytic Anemia:
 • Mechanism: IgG and Complement-mediated
 • Etiology:
Warm vs Cold Autoimmune ... Spherocytes • Treatment ... transient hemolysis • Treatment ... #Anemia #hematology ... #diagnosis #comparison
Autoimmune Hemolytic Anemia (AIHA) Pathophysiology - Warm vs Cold AIHA
Warm AIHA:
 - 70%; IgG mediated
 -
Autoimmune Hemolytic ... - Warm vs Cold ... #Hemolytic #Anemia ... Pathophysiology #diagnosis ... #hematology
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Cell Agglutinate: Cold ... autoimmune hemolytic ... cold hemoglobinuria ... #differential #diagnosis ... #hematology #microscopy
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Viral infection, autoimmune ... of anemia include ... anemiaCold ... CLL (older) • Autoimmune ... #hematology #diagnosis
Autoimmune Hemolytic Anemia (AIHA) Treatment
Warm AIHA:
1) Steroids - 1-2 mg/kg prednisone daily
   • Until
Autoimmune Hemolytic ... Anemia (AIHA) Treatment ... esp if severe disease ... azathioprine Cold ... #management #hematology
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
Autoimmune diseases ... and duration of symptoms ... #Urticaria #diagnosis ... #rheumatology # ... comparison #table
Warm Antibody Autoimmune Hemolytic Anemia 
1) DIAGNOSE AIHA
 • Anemia: macrocytic > normocytic, ↑ reticulocytes
 •
Warm Antibody Autoimmune ... 1) DIAGNOSE AIHA ... Warm #Antibody #Autoimmune ... #diagnosis #management ... #treatment #rheumatology
Expected DAT Results in Autoimmune Hemolysis
DAT Negative Hemolysis
 • DAT Poly ( - ), IgG (
DAT Results in Autoimmune ... , C3d ( +/- ) Cold ... agglutinin disease ... #Hemolysis #hematology ... #diagnosis
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Diagnostic Framework ... Microangiopathic hemolytic anemia ... (AIHA)"Cold" (usually ... (e.g. primary cold ... #hematology #anemia