69 results
Hemolytic Anemias - Differential Diagnosis Algorithm

Signs of anemia and hemolysis:
 • ↓ Haptoglobin
 • ↑ LDH
Hemolytic Anemias ... Algorithm Signs of anemia ... Abnormal peripheral smear ... Anemias (AIHAs) ... Anemias (AHAs)
Laboratory Testing in Hemolytic Anemia

Intravascular vs Extravascular Hemolysis
Reticulocytes
Unconjugated bilirubin
LDH
Peripheral smear
Haptoglobin
Urine hemosiderin
Urine hemoglobin
Carboxyhemoglobin

#Hemolytic #Anemia #Laboratory #Testing #workup
Laboratory Testing in Hemolytic ... Anemia Intravascular ... Extravascular Hemolysis ... LDH Peripheral smear ... #Anemia #Laboratory
Warm Antibody Autoimmune Hemolytic Anemia 
1) DIAGNOSE AIHA
 • Anemia: macrocytic > normocytic, ↑ reticulocytes
 •
Anemia 1) DIAGNOSE ... AIHA • Anemia ... C3d • Blood smear ... #Anemia #diagnosis ... #management #treatment
Dacrocytes (tear drop cells) 
Other poikilocytes resemble a pear or teardrop. The narrow, tapered end
may be
metaplasia, pernicious anemia ... thalassemia, and some hemolytic ... anemias. ... #Clinical #Path ... BloodSmear #Blood #Smear
Hemolytic Anemia - Differential Diagnosis Algorithm
Hereditary:
 • Peripheral blood smear + DAT + further History
 •
Hemolytic Anemia ... Peripheral blood smear ... → Sickle Cell anemia ... anemia (TTP, HUS ... #Anemia #Differential
Peripheral Blood Smear Analysis
Hypochromia
Megaloblastic Anemia
Schistocytes: Microangiopathic hemolytic anemia (e.g. DIC, TTP, HUS)
Microspherocytes: Autoimmune hemolytic anemia
Sickled red
Peripheral Blood Smear ... Megaloblastic Anemia ... anemia (e.g. ... anemia Sickled ... interpretation #clinical #anemia
Warm vs Cold Autoimmune Hemolytic Anemia
Warm Autoimmune Hemolytic Anemia:
 • Mechanism: IgG and Complement-mediated
 • Etiology:
Anemia Warm Autoimmune ... Hemolytic Anemia ... Anemia: • Mechanism ... • Treatment: Warm ... #Anemia #hematology
Elliptocyte - 
Note the shape of these appropriately named erythrocytes.
In addition to hereditary elliptocytosis, elliptocytes can
megaloblastic anemia ... myelophthisic anemia ... sideroblastic anemia ... #Clinical #Path ... BloodSmear #Blood #Smear
Autoimmune Hemolytic Anemia (AIHA) Pathophysiology - Warm vs Cold AIHA
Warm AIHA:
 - 70%; IgG mediated
 -
Autoimmune Hemolytic ... Anemia (AIHA) Pathophysiology ... or negative - Smear ... C3 positive - Smear ... #Anemia #Pathophysiology
Peripheral blood findings in microangiopathic hemolytic anemia.  DIC is a clinical and laboratory diagnosis, not
anemia. ... anemia is characterized ... arrow) Peripheral smear ... #anemia #Hematology ... #Pathology #Smear