9 results
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Immune-Mediated • Warm AIHA ... • Cold AIHA ... • Drug-induced AIHA ... elliptocytosis - RBC ... Algorithm #Causes #Hematology
Warm Antibody Autoimmune Hemolytic Anemia 
1) DIAGNOSE AIHA
 • Anemia: macrocytic > normocytic, ↑ reticulocytes
 •
1) DIAGNOSE AIHA ... ↑ LDH • Anti-RBC ... • Blood smear: Differential ... screening 3) TREAT AIHA ... #diagnosis #management
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Hemolysis - Differential ... 2) External (RBC ... : Warm AIHA, Cold ... AIHA, Transfusion ... Diagnosis #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
(AIHA) "Warm" ( ... (AIHA)"Cold" (usually ... • Intrinsic RBC ... Extravascular #Causes #differential ... #diagnosis #hematology
Acute Liver Injury - Differential Diagnosis Algorithm

Vascular Causes of Acute Liver Injury: 
 • Hepatic vein:
: Autoimmune hepatitis ... , PBC, PSC, IgG4 ... • LDH: Heart, RBC ... #injury #hepatitis ... diagnosis #algorithm #hepatology
Autoimmune Hepatitis

Clinical Presentation
 - Highly variable clinical presentation, from subclinical disease to acute liver failure.
 -
Autoimmune Hepatitis ... been reported (eg AIH-PBC ... If suspected, AIH ... #Hepatitis #AIH ... #Hepatology
Causes of Acute Liver Injury - Differential Diagnosis
Hepatocellular - Liver Parenchyma
 • Infectious: Hepatitis C, A,
Injury - Differential ... Other: NAFLD, Autoimmune ... Malignancy, 1° PBC ... #Injury #Differential ... Acute #algorithm #hepatology
Liver Chemistries - Interpretation of LFTs

R-value: Serum (ALT/ULN ALT) / (Alk phos/ULN ALP)
 • R >
• Bilirubin: RBC ... cardiac muscle, RBC ... • LDH: Heart, RBC ... #diagnosis #differential ... #Hepatology #transaminitis
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
women • 15% of AIHA ... Viral infection, autoimmune ... Blood smear - RBC ... younger pts) Differential ... #anemia #hematology