10 results
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
RBC) Morphology ... Microangiopathic Hemolytic ... spherocytosis, Autoimmune hemolytic ... autoimmune hemolytic ... #diagnosis #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Framework for Hemolysis ... e.g. lupus, CLL, lymphoma ... lymphoproliferative disorders ... • Intrinsic RBC ... #diagnosis #hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... hypertension • Unusual RBC ... acanthocytes - Consider RBC ... #Anemia #Differential ... #hematology #testing
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Hemolysis - Differential ... 2) External (RBC ... 3) Internal (RBC ... Urobilinogen #Hemolysis ... Diagnosis #hematology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Diagnosis: • hemolytic ... • Compensated hemolysis ... smear - RBC agglutination ... #hemolytic #anemia ... #hematology #diagnosis
Bandemia Overview

Normal: < 1%
Clinically significant: > 10%

Band neutrophils are slightly less mature than segmented neutrophils and
Even with normal WBC ... relative to both WBC ... bacteremia • Abnormal WBC ... 21% had normal WBC ... #WBC #CBC #hematology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
decreased PLT count: CBC ... smear, HIV/HCV testing ... changes), high MCV anemia ... ), HBsAg/anti-HBc ... #hematology
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
hemorrhage and hemolysis ... intravascular hemolysis ... out an immune hemolytic ... from ischemia WBC ... #Hematology
Hodgkin's Lymphoma Overview

Hodgkin's lymphoma (HL) is an uncommon hematological malignancy arising from mature B cells. It
- Clinical Presentation ... nodosum • Immune hemolytic ... Workup: • Full ... platelets - WBC ... classification #hematology
Paraproteinemias

Entities That Can Feature A Monoclonal Protein/M Component:
• MM
• WM
• MGUS
• MGCS
• MGRS
• Splenic Marginal Zone
+Organomegaly+↑RBC ... • Coombs (-) hemolytic ... anemia due to cold ... Paraproteinemias #Hematology ... #Monoclonal #Differential