9 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
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
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- Differential ... Abnormal Hgb & Hgb Defects ... Hgb - Membrane Defects ... - RBC Enzyme Defects ... • PK deficiency
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
- Differential ... , Other enzyme defects ... Unstable hemoglobin defects ... Glutathione metabolism defects ... #Anemia #Differential
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Intrinsic RBC Defects ... G6PD deficiency) ... thalassemias), Membrane defects ... Extravascular #Causes #differential ... #diagnosis #hematology
Clinically Important Vitamins and Vitamin Deficiency States
Fat-soluble Vitamins: 
 • Vitamin A - Xerophthalmia, night blindness,
Vitamins and Vitamin Deficiency ... • Vitamin E - Haemolytic ... Anaemia, neural tube defects ... #differential # ... diagnosis #signs
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
deficiencies: Iron deficiency ... Microangiopathic hemolytic ... Intrinsic RBC defects ... cell anemia, G6PD deficiency ... #anemia #differential
Inherited Qualitative Platelet Defects
Bernard-Soulier Syndrome
 • Defect of adhesion due to a lack of GP Ib/IX/V
Qualitative Platelet Defects ... a storage pool deficiency ... Inherited #Platelet #Defects ... #comparison #table ... #differential #
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Thrombocytopenia • Platelet defects ... PURPURA: Platelet Defects ... DIC/TTP/HUS - Hemolytic ... syndrome Coagulation Defects ... #rheumatology #
Etiologies of Folate Deficiency
 • Decreased dietary intake - uncommon in this era
 • Increased requirements
Etiologies of Folate Deficiency ... pregnant have hemolytic ... Alcohol - Alcohol affects ... #FolicAcid #differential ... #diagnosis #hematology