35 results
Hemolytic Anemias - Differential Diagnosis Algorithm

Signs of anemia and hemolysis:
 • ↓ Haptoglobin
 • ↑ LDH
Hemolytic Anemias ... Differential Diagnosis Algorithm ... Abnormal peripheral smear ... • Extrinsic RBC ... • Intrinsic RBC
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
Differential Diagnosis Algorithm ... on Smear • Chronic ... Spherocytes on Smear ... Membrane Disorder ... Disorder - Acquired
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
Causes of Anemia ... Differential Diagnosis Algorithm ... Bleed • Hemolysis ... Microangiopathic Hemolytic ... Differential #Diagnosis #Algorithm
Hemolytic Anemia - Differential Diagnosis Algorithm
Hereditary:
 • Peripheral blood smear + DAT + further History
 •
Hemolytic Anemia ... Differential Diagnosis Algorithm ... Peripheral blood smear ... Hypochromic & microcytic RBCs ... #Diagnosis #Algorithm
Warm Antibody Autoimmune Hemolytic Anemia 
1) DIAGNOSE AIHA
 • Anemia: macrocytic > normocytic, ↑ reticulocytes
 •
Antibody Autoimmune Hemolytic ... Anemia 1) DIAGNOSE ... AIHA • Anemia ... ↑ LDH • Anti-RBC ... C3d • Blood smear
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Iron deficiency anemia ... Microangiopathic Hemolytic ... Unstable hemoglobin disorders ... spherocytosis, Autoimmune hemolytic ... Cold autoimmune hemolytic
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Framework for Hemolysis ... anemia): ... lymphoproliferative disorders ... • Intrinsic RBC ... diagnosis #hematology #anemia
Anemia Diagnostic Algorithm

Mean corpuscular (cell) volume (MCV): Average RBC size. Under 80 = microcytic. Between 80-95
Anemia Diagnostic ... Algorithm Mean ... acute blood loss, hemolysis ... (BM) ablative disorders ... Algorithm by Dr.
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Hemolysis - Differential ... 2) External (RBC ... Defects: Sickle cell anemia ... Peripheral Blood Smear ... Urobilinogen #Hemolysis
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... Differential Diagnosis Algorithm ... membrane disorder ... #Anemia #Differential ... #Diagnosis #Algorithm