16 results
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Framework for Hemolysis ... Intravascular Hemolysis ... Microangiopathic hemolytic ... purpura (TTP), Hemolytic ... Transfusion reaction, Paroxysmal
Autoimmune Hemolytic Anemia (AIHA) - Differential Diagnosis Table

Warm AIHA (48-70%)
Cold AHA (16-32%)
 • Donath-Landsteiner HA (paroxysmal
Autoimmune Hemolytic ... Diagnosis Table ... Donath-Landsteiner HA (paroxysmal ... #Autoimmune #Hemolytic ... #hematology
Hemolysis - Diagnostic Algorithm and Causes

Increased red cell production: 
 • Increased Reticulocytosis/polychromasia 
 • Erythroid
Hemolysis - Diagnostic ... haptogbbulin #Hemolysis ... #Hemolytic #Anemia ... #Algorithm #Differential ... GrepMed Recommended Text
Expected DAT Results in Autoimmune Hemolysis
DAT Negative Hemolysis
 • DAT Poly ( - ), IgG (
in Autoimmune Hemolysis ... DAT Negative Hemolysis ... , C3d ( +/- ) Paroxysmal ... #antiglobulin #test ... DAT #Autoimmune #Hemolysis
Differential Diagnosis for Hemolytic Anemia
Intrinsic Causes:
 • Enzyme deficiencies ex. G6PD, pyruvate kinase 
 • Hemoglobinopathies
Differential Diagnosis ... for Hemolytic Anemia ... incompatibility • Paroxysmal ... udaygulati #Hemolytic ... classification #hematology
Pancytopenia - Differential Diagnosis

Congenital Diseases:
• GATA2 deficiency
• Fanconi’s anemia
• Wiskott-Aldrich syndrome
• Ribosomopathy or telomeropathy

Cancer:
• Leukemia
• Lymphoma

Inflammatory
Pancytopenia - Differential ... erythematosus • HLH • Paroxysmal ... Antibody-mediated hemolysis ... #Pancytopenia #Differential ... #Diagnosis #Hematology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Diagnosis: • hemolytic ... • Compensated hemolysis ... younger pts) Differential ... intravascular hemolysis ... agglutinin #disease #hemolytic
Liver Function Test (LFTs) Elevation
AST - Cardiac and skeletal muscle, kidney, brain
ALT - More specific for
Liver Function Test ... ) vs Indirect (Hemolytic ... LFTs #Elevation #Transaminitis ... #diagnosis #hepatology
Patterns of Liver Injury
Transaminase Levels:
  > 50x normal - Ischemic Hepatitis
  > 20x normal
2-5x normal - Hemolysis ... Liver #Injury #hepatology ... #LFTs #transaminitis ... #differential #
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
hemorrhage and hemolysis ... intravascular hemolysis ... out an immune hemolytic ... the severity of hemolysis ... WBC count and differential