15 results
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
elliptocytosis - RBC ... Defects • G6PD deficiency ... • PK deficiency ... immune-complex hemolytic anemia ... Algorithm #Causes #Hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Microangiopathic hemolytic anemia ... • Intrinsic RBC ... G6PD deficiency) ... differential #diagnosis #hematology ... #anemia
Red Blood Cell (RBC) Morphology Atlas
 • Microcytic - Iron-deficiency anemia, Thalassemia, Sideroblastic anemia, Lead poisoning
Red Blood Cell (RBC ... Microcytic - Iron-deficiency ... , Disseminated intravascular ... coagulopathy (DIC) #RBC ... #differential #hematology
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
x (Hct / 45) / Maturation ... Factor The maturation ... transform into a RBC ... , Intrinsic RBC ... Production #Index #hematology
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Artifact (redo CBC ... effect following treatment ... malignancy • Iron deficiency ... anemia #Thrombocytosis ... Algorithm #Causes #Hematology
Aplastic Anemia - Illness Script
Signs and symptoms:
 • Recurrent infections from neutropenia
 • Mucosal bleeding from
Aplastic Anemia ... Illness Script Signs ... Treatment: • Consider ... #diagnosis #management ... #treatment #hematology
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
Leukostasis: • Pathophysiology ... >100k, + lab signs ... Lysis Syndrome: • Pathophysiology ... TLS #diagnosis #management ... #hematology
Aplastic Anemia - Overview

Who?
• M = F
• 3 peaks:	1) Childhood	2) 15-25 years	3) >60 years

What?
• Aplastic anemia
, GATA2 deficiency ... , CTLA4 deficiency ... Treatment: ... #oncology #hematology ... #diagnosis #management
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
Disseminated Intravascular ... protein C and S Pathophysiology ... thrombopoietin deficiency ... hydration • RBC ... #management #hematology
Polycythemia Vera (PV) - Diagnosis and Management Summary
Diagnostic Criteria:
 • Elevated hemoglobin and/or hematocrit AND
 •
Diagnosis and Management ... incidentally via CBC ... present, symptoms, signs ... PV #Diagnosis #Management ... #hematology