34 results
Autoimmune Hemolytic Anemia (AIHA)

WARM AHA
- Primary - Idiopathics
- Secondary
Infectious
 • Viral- HIV, EBV, HCV, HEV
 •
• Antibiotics- eg ... /antipyretics- e.g ... Anticancer agents- eg ... ipilimumab • Others- eg ... AIHA #Diagnosis #Differential
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
infiltration (e.g ... . cancer, infection ... Marrow suppression (e.g ... Intrinsic RBC defects (e.g ... #differential #
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
(usually IgG) (e.g ... (usually IgM) (e.g ... deficiencies (e.g ... Membrane defects (e.g ... Extravascular #Causes #differential
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Megakaryopoiesis • Aplastic Anemia ... Toxic Damage (e.g ... Displacement (e.g ... Vasculitis • Infection ... Foreign Surface (e.g
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
Algorithmic Approach to Anemia ... - Differential ... Macroangiopathic, Infections ... aciduria, Drugs (e.g ... MCV #Algorithm #Differential
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Causes of Anemia ... Volume (MCV) - Differential ... Chronic Disease (e.g ... Inflammation, Chronic Infection ... Classification #Differential
CENTRAL FACIAL / NASAL LESIONS
Bacteria:
 • Leprosy (saddle nose deformity)
 • Tuberculosis (lupus vulgaris)l
 • Endemic
CENTRAL FACIAL / ... Endemic treponemal infection ... (e.g. ... Invasive mold infection ... infectiousdiseases #differential
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
Thrombocytosis - Differential ... Thrombocytosis): • Acute infection ... malignancies • Anemia ... inflammatory disorders (e.g ... Thrombocytosis #Differential
Pediatric Vomiting - Gastrointestinal and Systemic Causes - Differential Diagnosis Algorithm
Hepatobiliary:
 • Acute Hepatitis
 • Acute
Systemic Causes - Differential ... Diabetes/ DKA • Uremia ... Other: • Sepsis (e.g ... Urinary Tract Infection ... Emesis #Vomiting #Differential
Classification of Jaundice
Unconjugated hyperbilirubinemia (predominantly indirect bilirubin)
 • Increased bilirubin production (eg, hemolytic anemias, hemolytic reactions,
bilirubin production (eg ... , hemolytic anemias ... uptake and storage (eg ... , spirochetal infections ... #unconjugated #differential