19 results
Hemolytic Anemias - Differential Diagnosis Algorithm

Signs of anemia and hemolysis:
 • ↓ Haptoglobin
 • ↑ LDH
- Differential ... Diagnosis Algorithm Signs ... Extrinsic RBC Defects ... Intrinsic RBC Defects ... : Membrane defects
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Hemolysis - Differential ... Non-immune: Membrane Defects ... Spiders - Enzyme Defects ... - Hemoglobin Defects ... : Sickle cell anemia
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Intravascular Hemolysis - Differential ... Abnormal Hgb & Hgb Defects ... Hgb - Membrane Defects ... - RBC Enzyme Defects ... immune-complex hemolytic anemia
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... - Differential ... , Other enzyme defects ... Unstable hemoglobin defects ... Glutathione metabolism defects
Anaplasma Infection - Anaplasma phagocytophilum
Pathophysiology: 
 • Obligate, intracellular bacteria
 • Transmitted via blacklegged tick —
scapularis • Infects ... within morulae Signs ... myalgias, shaking chills ... immature forms) • Anemia
Differential Diagnosis for Hemolytic Anemia
Intrinsic Causes:
 • Enzyme deficiencies ex. G6PD, pyruvate kinase 
 • Hemoglobinopathies
Differential Diagnosis ... for Hemolytic Anemia ... • Membrane defects ... #Differential # ... classification #hematology
Clinically Important Vitamins and Vitamin Deficiency States
Fat-soluble Vitamins: 
 • Vitamin A - Xerophthalmia, night blindness,
E - Haemolytic anaemia ... , neural tube defects ... Vitamin B12 - Anaemia ... Vitamins #Deficiency #differential ... #diagnosis #signs
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Intrinsic RBC Defects ... thalassemias), Membrane defects ... Extravascular #Causes #differential ... #diagnosis #hematology ... #anemia
Inherited Qualitative Platelet Defects
Bernard-Soulier Syndrome
 • Defect of adhesion due to a lack of GP Ib/IX/V
Qualitative Platelet Defects ... Inherited #Platelet #Defects ... #comparison #table ... #differential # ... diagnosis #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... Thrombocytopenia • Platelet defects ... PURPURA: Platelet Defects ... - Hemolytic anemia ... syndrome Coagulation Defects