14 results
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
lymphoproliferative disorders ... Mycoplasma pneumoniae infection ... spherocytosis) • Infections ... Extravascular #Causes #differential ... #diagnosis #hematology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Platelet Count - Differential ... → Refer to hematology ... for workup, including ... blood loss, Acute hemolysis ... Diagnosis #Algorithm #hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
- Differential ... inclusions - If infection ... Consider RBC membrane disorder ... Diagnosis #Algorithm #workup ... #hematology #testing
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
Thrombocytosis - Differential ... Thrombocytosis): • Acute infection ... iron deficiency, hemolysis ... Chronic inflammatory disorders ... Diagnosis #Causes #hematology
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
Eosinophil Disorders ... evaluation or workup ... 1,500 cells/µL Workup ... #Algorithm #Differential ... #diagnosis #hematology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
lymphoproliferative disorder ... , autoimmune disorder ... younger pts) Differential ... Monoclonal IgM Includes Disorders ... #anemia #hematology
Causes of Splenomegaly - Differential Diagnosis Algorithm
Infectious
 • Bacterial
 • Viral (EBV)
 • Parasitic
 • Fungal
Congestive
Splenomegaly - Differential ... Diagnosis Algorithm Infectious ... Myeloproliferative disorders ... Serum Sickness Hemolytic ... Algorithm #Causes #Hematology
Patterns of Liver Injury
Transaminase Levels:
  > 50x normal - Ischemic Hepatitis
  > 20x normal
Patterns of Liver Injury ... 10-20x normal - Infection ... 2-5x normal - Hemolysis ... #hepatology #LFTs ... transaminitis #differential
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... DIC/TTP/HUS - Hemolytic ... SLE) - Viral infections ... APLS • Acute Infectious ... #Diagnosis #hematology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
- Differential ... Diagnosis and Workup ... procedures - Infection ... #Differential # ... #hematology