29 results
Thrombocytosis - Differential Diagnosis
Platelet Count > 450
Reactive:
 • Anemia/blood loss (Fe deficiency)
 • Infection/Sepsis
 • Non-infectious
Reactive: • Anemia ... /blood loss (Fe ... deficiency) • Infection ... Sepsis • Non-infectious ... causes #Platelets #hematology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
→ Refer to hematology ... TPO, TPO-RA • Infections ... : Chronic infections ... bacterial and viral infections ... #Algorithm #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Diagnostic Framework ... syndrome - Thrombotic ... Mycoplasma pneumoniae infection ... spherocytosis) • Infections ... #hematology #anemia
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
the peripheral blood ... (e.g. cancer, infection ... G6PD deficiency), Infections ... Production #Index #hematology ... #diagnosis #calculation
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
- Differential Diagnosis ... Inflammation, Chronic Infection ... #MCV #Classification ... #Differential #Diagnosis ... Algorithm #Causes #Hematology
Differential Diagnosis for Hemolytic Anemia
Intrinsic Causes:
 • Enzyme deficiencies ex. G6PD, pyruvate kinase 
 • Hemoglobinopathies
Differential Diagnosis ... for Hemolytic Anemia ... drug induced • Infections ... #causes #classification ... #hematology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
- Due to Viral infection ... Polyclonal - Viral Infection ... Check For: • Infections ... Polyclonal IgM post infectious ... #hematology #diagnosis
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
hypogammaglobulinemia -> increased infection ... history of recurrent infections ... disease • Infectious ... community-acquired infections ... hypogammaglobulinemia #immunology #hematology
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
- Differential Diagnosis ... Internal (RBC) - Infections ... Defects: Sickle cell anemia ... - Peripheral Blood ... #hematology
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
• Peripheral blood ... drug reaction, infection ... Strongyloides infection ... #Differential #diagnosis ... #hematology #eosinophilia