21 results
Hemolysis - Diagnostic Algorithm and Causes

Increased red cell production: 
 • Increased Reticulocytosis/polychromasia 
 • Erythroid
Hemolysis - Diagnostic ... Algorithm and Causes ... #Hemolytic #Anemia ... #Algorithm #Differential ... #Causes #Workup
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
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Causes of Extravascular ... - Differential ... • Sickle cell ... anemia • ... Prosthetic heart valves
Differential diagnosis of schistocytes / fragmentation hemolysis:
 • Thrombotic microangiopathies (TMA)
    - TTP
Differential diagnosis ... formerly known as ... organ or stem cell ... anemia" • HELLP ... Catastrophic APLS BCM IM
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Diagnostic Framework ... anemia): ... - Drugs (Beta lactam ... Hemoglobinopathies (e.g. sickle cell ... #differential #
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Hemolysis - Differential ... HELLP - Grafts, Valves ... Defects: Sickle cell ... anemia, Thalassemias ... Haptoglobin ↓ - Lactate
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
activity - A low value ... If the value is ... elevation Serum lactate ... WBC count and differential ... #Workup #Hematology
Elevated Lactate Dehydrogenase (LDH) - Differential Diagnosis Framework

LDH is a cytoplasmic enzyme present in tissues throughout
Elevated Lactate ... Dehydrogenase (LDH) - Differential ... Diagnosis Framework ... - Prosthetic valves ... #diagnosis #Laboratory
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Diagnosis: • hemolytic ... Hyperbilirubinemia • Elevated lactate ... malignancies - B-cell ... younger pts) Differential ... Disorders Such As
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis

The most common causes of hyperlactatemia are usually:
Causes of Lactate ... e.g., uptake by cells ... to bolus these values ... 30mmHg) - Severe anemia ... #Diagnosis #causes
Myelodysplastic Syndromes (MDS)

What?
Myelodysplastic syndromes are a group of disorders caused by blood cells that are poorly
group of disorders caused ... formed or don’t work ... Workup: • Complete ... blood count with differential ... Myelodysplastic #Syndromes #diagnosis