38 results
Causes of False Elevation and Reduction in HbA1c

== False Elevation ==
Decreased RBC turnover 
• Iron, B-12,
Causes of False ... Content • RBC Transfusions ... blood loss • Hemolytic ... anemia • Splenomegaly ... #Decrease #Diagnosis
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
Causes of Anemia ... Diagnosis Algorithm Decreased ... WBCs - Decreased ... Bleed • Hemolysis ... - Abnormal RBCs
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Extravascular Causes ... anemia): ... HUS) • Other: Transfusion ... implicated) - Transfusion ... Extravascular #Causes
Hemolytic Anemia - Differential Diagnosis Algorithm
Hereditary:
 • Peripheral blood smear + DAT + further History
 •
Hemolytic Anemia ... → Sickle Cell anemia ... disease, drugs, transfusions ... anemia (TTP, HUS ... Diagnosis #Algorithm #causes
Blood Product Transfusions One Pager Summary
Type and screen - determines blood type and detects in recipient
Transfusion Thresholds ... Hemolysis on labs ... Causes purpura & ... TRALI): Leading cause ... more likely to cause
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Causes of Extravascular ... Intravascular Hemolysis ... Drug-induced AIHA - Abnormal ... anemia • ... Diagnosis #Algorithm #Causes
Differential Diagnosis for Hemolytic Anemia
Intrinsic Causes:
 • Enzyme deficiencies ex. G6PD, pyruvate kinase 
 • Hemoglobinopathies
Diagnosis for Hemolytic ... Anemia Intrinsic ... prosthetic valve • Transfusion ... udaygulati #Hemolytic ... #Anemia #Differential
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
Mild-to-moderate decrease ... in most cases; ... result in severe anemia ... Platelet count - Decreased ... anemia Indirect
Causes of Anemia with Low Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased Heme Synthesis or
Causes of Anemia ... Deficiency (Eg Causes ... , TIBC normal/decreased ... TlBC > 18% • Anemia ... #Microcytic #Anemia
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Hemolysis - Differential ... AIHA, Cold AIHA, Transfusion ... Defects: Sickle cell anemia ... Blood Smear ↑ abnormal ... Urobilinogen #Hemolysis