- Variants below as seen on Peripheral Smear
- RBC Evaluation parameters
- RBC Color
- RBC Size
- RBC Shape
- RBC Contents
- Macrocytes
- See Macrocytic Anemia
- Reticulocytosis
- Liver disease
- Hypochromic Microcytes: Defective Hemoglobin synthesis
- Spherocytes
- Hereditary Spherocytosis
- Autoimmune Hemolytic Anemia
- Acute Alcoholism
- Hemoglobin C Disease
- Following severe Burn Injury
- Hemolytic Transfusion Reactions
- Severe Hypophosphatemia
- Acute Oxidant Injury: Hexose Monophosphate Shunt Defect
- Clostridium Welchii Septicemia
- Elliptocytes (Oval Cells)
- Megaloblastic Anemia
- Myelofibrosis
- Refractory normoblastic Anemia
- Hereditary elliptocytosis
- Thalassemia
- Schistocytes (Fragmented Red Blood Cells)
-
Microangiopathic Hemolytic Anemia
- Disseminated Intravascular Coagulation (DIC)
- Thrombotic Thrombocytopenic Purpura (TTP)
- Hemolytic Uremic Syndrome (HUS)
- Giant Hemangioma
- Metastatic Carcinoma
- Malignant Hypertension
- Eclampsia (Toxemia of Pregnancy)
- Vasculitis
- Macroangiopathic Hemolytic Anemia
- Dacryocytes (tear drop RBC)
- Extramedullary hemopoiesis
- Myelophthisic Anemia
- Severe Hemolytic Anemia
- Erythroleukemia
- Acanthocytes (Spur Cells)
- Howell-Jolly Bodies
- Basophilic Stippling (aggregated ribosomes)
- Lead Poisoning
- Arsenic Poisoning
- Thalassemia
- Sideroblastic Anemia
- Hemolytic Anemia
- Severe Anemia
- Unstable Hemoglobin
- Pyrimidine 5'-Nucleotidase Deficiency
- Heinz Body (Aggregates of denatured Hemoglobin)
- Oxidative Hemolytic Anemia (G6PD Deficiency)
- Target Cells
- Thalassemia
- Hemoglobin C
- Hemoglobin S (Sickle Cell Anemia)
- Liver Disease
- Sideroblasts
- See Sideroblastic Anemia
- Nucleated RBCs
- Iron laden mitochondria
- Cabot's Ring Bodies (Nuclear remnants)
- Other findings on RBC exam
- Ravel (1995) Clinical Laboratory Medicine, p. 14-16