284 results
Causes of Leukocytosis and Leukopenia - Differential Diagnosis
 • Eosinophilia (AEC > 500, hypereosinophilia > 1500):
Causes of Leukocytosis ... - Differential Diagnosis ... Malignancy, Autimmune, Drugs ... , Drugs, Autoimmune ... #causes #hematology
Eosinophils (Eos) and hypereosinophilia (HE)
Caused by eosinophilopoietic cytokines
Common causes:
 - Drug reaction
 - Helminth infection
 -
: - Drug reaction ... - Helminth infection ... CD3-CD4+ T cells ... aspergillosis - Viral infections ... #Differential #Diagnosis
Thrombocytosis - Differential Diagnosis
Platelet Count > 450
Reactive:
 • Anemia/blood loss (Fe deficiency)
 • Infection/Sepsis
 • Non-infectious
- Differential Diagnosis ... deficiency) • Infection ... Sepsis • Non-infectious ... (malignancy, rheumatologic ... #causes #Platelets
Causes of Neutropenia with Pancytopenia - Differential Diagnosis Algorithm
Sequestration:
 • Splenomegaly
Marrow Infiltration:
 • Hematologic and non-hematologic
Causes of Neutropenia ... - Differential Diagnosis ... malignancies • Infection ... Radiation • Drugs ... #Hematology
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... - Differential Diagnosis ... Vasculitis • Infection ... #Algorithm #Causes ... #Hematology
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
x (Hct / 45) / Maturation ... Factor The maturation ... (e.g. cancer, infection ... suppression (e.g. drugs ... #differential #diagnosis
Causes of Diffuse Lymphadenopathy - Differential Diagnosis Algorithm
Reactive:
 - Systemic Inflammatory
     •
Causes of Diffuse ... - Differential Diagnosis ... Lymphocytic Leukemia (CBC ... #Algorithm #Causes ... #Hematology #Oncology
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
- Differential Diagnosis ... : • Myopathy: Drugs ... Myasthenia, LEMS, Drug ... #Differential #Diagnosis ... #causes #neurology
Drugs that Cause Fever
Most commonly:
Amphotericin B, Antihistamines, Asparaginase, Barbiturates, Bleomycin sulfate, Methyldopa, Penicillins, Phenytoin sodium, Procainamide,
Drugs that Cause ... hydrochloride #Drug ... #Fever #causes ... #differential #diagnosis ... #pharmacology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
→Activation of CD8 ... Auto-amplification loop Diagnosis ... immune deficiency, Drugs ... , Unknown cause ... treatment #summary #rheumatology