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

Warm AIHA (48-70%)
Cold AHA (16-32%)
 • Donath-Landsteiner HA (paroxysmal
Autoimmune Hemolytic ... Anemia (AIHA) - ... Differential Diagnosis ... hemoglobinuria) • Cold Agglutinin ... #Anemia #AIHA #
Hemolytic Anemias - Differential Diagnosis Algorithm

Signs of anemia and hemolysis:
 • ↓ Haptoglobin
 • ↑ LDH
Hemolytic Anemias ... - Differential ... Abnormal peripheral smear ... Anemias (AIHAs) ... #Anemias #Differential
Warm Antibody Autoimmune Hemolytic Anemia 
1) DIAGNOSE AIHA
 • Anemia: macrocytic > normocytic, ↑ reticulocytes
 •
Anemia 1) DIAGNOSE ... AIHAAnemia ... C3d • Blood smear ... : Differential → ... screening 3) TREAT AIHA
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
women • 15% of AIHA ... • Symptoms of anemia ... anemia • Cold ... IgM) • Blood smear ... younger pts) Differential
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
anemia): ... - Autoimmune (AIHA ... - Autoimmune (AIHA ... . primary cold agglutin ... Extravascular #Causes #differential
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Hemolysis - Differential ... Autoimmune: Warm AIHA ... Defects: Sickle cell anemia ... Peripheral Blood Smear ... #Differential #
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... - Differential ... Agglutination - Cold agglutinins ... #Anemia #Differential ... Diagnosis #Algorithm #workup
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
result in severe anemia ... Peripheral blood smear ... anemia Indirect ... WBC count and differential ... ThromboticThrombocytopenicPurpura #Diagnosis #Workup
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Platelet Count - Differential ... Peripheral Smear ... hematology for workup ... blood loss, Acute hemolysis ... , deficiency anemia