13 results
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
Extravascular Hemolysis ... bilirubin LDH Peripheral ... smear Haptoglobin ... workup #diagnosis #hematology ... #hemolysis
Plasmodium Falciparum Blood Smear.
Key features suggesting Plasmodium falciparum:
- extreme parasitemia
- normocytic RBCs (vivax, ovale prefer big
Falciparum Blood Smear ... reticulocytes) - thin trophozoites ... ~75% of human malaria ... #peripheral #clinical ... #microbiology #malaria
Hemolytic Anemias - Differential Diagnosis Algorithm

Signs of anemia and hemolysis:
 • ↓ Haptoglobin
 • ↑ LDH
Hemolytic Anemias ... Reticulocytes • Abnormal peripheral ... smear Immune-mediated ... Hemolysis: • ... Diagnosis #Algorithm #hematology
Plasmodium falciparum trophozoites (and crenated red blood cells) - Blood Smear

A classic presentation of Plasmodium falciparum
cells) - Blood Smear ... Plasmodium falciparum malaria ... in a thin blood smear ... #peripheral #clinical ... #microscopy #malaria
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 Analysis ... Microangiopathic hemolytic ... #Blood #Smear # ... Analysis #hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
Hereditary:
 • Peripheral blood smear + DAT + further History
 •
Hemolytic Anemia ... Hereditary: • Peripheral ... blood smear + DAT ... Immune mediated hemolysis ... Malaria, Clostridium
Peripheral blood findings in microangiopathic hemolytic anemia.  DIC is a clinical and laboratory diagnosis, not
Peripheral blood ... (black arrow) Peripheral ... smear changes are ... #anemia #Hematology ... #Pathology #Smear
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Hemolysis - Differential ... Infections/toxins: Malaria ... Dehydrogenase ↑ - Peripheral ... Blood Smear ↑ abnormal ... Differential #Diagnosis #hematology
Plasmodium vivax on peripheral smear
A college student presents w/ headache, fever, chills. Returned 2 days ago
Plasmodium vivax on peripheral ... smear A college ... size amoeboid trophozoite ... PlasmodiumVivax #pvivax #malaria ... #peripheral #smear
Pancytopenia - Differential Diagnosis Algorithm
 • 12-13 g/dL,
 • ANC < 1800/uL,
 • platelet < 150,000/uL

Initial
BMP, uric acid, peripheral ... smear, reticulocyte ... ↑ Destruction (hemolysis ... Diagnosis #Algorithm #hematology