18 results
Warm Antibody Autoimmune Hemolytic Anemia 
1) DIAGNOSE AIHA
 • Anemia: macrocytic > normocytic, ↑ reticulocytes
 •
Warm Antibody Autoimmune ... 1) DIAGNOSE AIHA ... type ± C3d • Blood ... #diagnosis #management ... #treatment #rheumatology
Autoimmune Hemolytic Anemia (AIHA) - Differential Diagnosis Table

Warm AIHA (48-70%)
Cold AHA (16-32%)
 • Donath-Landsteiner HA (paroxysmal
Autoimmune Hemolytic ... - Differential Diagnosis ... Table Warm AIHA ... #Hemolytic #Anemia ... #Table #hematology
Expected DAT Results in Autoimmune Hemolysis
DAT Negative Hemolysis
 • DAT Poly ( - ), IgG (
DAT Results in Autoimmune ... #antiglobulin #test ... #DAT #Autoimmune ... #Hemolysis #hematology ... #diagnosis
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Diagnosis Framework ... Membrane): - Autoimmune ... Laboratory Tests ... - Peripheral Blood ... #hematology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Viral infection, autoimmune ... Diagnosis: • hemolytic ... sensitize red blood ... test #cold # ... #anemia #hematology
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
Retroperitoneal, Uterine • Hemolysis ... : Autoimmune, Microangiopathic ... hemolytic anemia ... Production #Index #hematology ... #differential #diagnosis
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Red Blood Cell ( ... disease, McLeod blood ... spherocytosis, Autoimmune ... #differential #diagnosis ... #hematology #microscopy
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
activity is the diagnostic ... value is low, tests ... of Peripheral blood ... indirect antiglobulin tests ... #Workup #Hematology
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
Autoimmune diseases ... Disorientation, vertigo Diagnostic ... Cold #Urticaria #diagnosis ... #rheumatology # ... comparison #table
Thrombocytopenia and Pregnancy
Three syndromes in the critically ill pregnant woman who presents with coagulation defects.
1) HELLP
defects. 1) HELLP (Hemolysis ... Elevated Liver tests ... Obstetrics #OBGyn #Hematology ... #Diagnosis #Comparison ... #Table