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Elliptocyte - 
Note the shape of these appropriately named erythrocytes.
In addition to hereditary elliptocytosis, elliptocytes can
megaloblastic anemia ... , and severe iron ... deficiency anemia ... #Clinical #Path ... #BloodSmear #Blood
Red Blood Cell (RBC) Morphology Atlas
 • Microcytic - Iron-deficiency anemia, Thalassemia, Sideroblastic anemia, Lead poisoning
Red Blood Cell ( ... • Microcytic - Iron-deficiency ... anemia, Thalassemia ... , Thalassemia, Iron-deficiency ... PD deficiency, Pulmonary
Iron Deficiency Anemia - Differential Diagnosis Algorithm

Labs: Ferritin, iron, transferrin, TIBC, TSAT, sTfR

 • Blood loss:
Iron Deficiency ... Anemia - Differential ... TSAT, sTfR • Blood ... athletic training, Pulmonary ... #Deficiency #Anemia
Here is another peripheral blood smear demonstrating changes with iron deficiency anemia. Note the increased zone
another peripheral blood ... demonstrating changes with iron ... deficiency anemia ... #Clinical #Path ... PeripheralBloodSmear #BloodSmear #Anemia
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
deficiency anemia ... Chronic disease anemia ... Sideroblastic anemia ... deficiency anemia ... Autoimmune hemolytic anemia
Iron Deficiency Anemia (IDA)
Tests:
 • MCV/RBC - RBC ↓ in proportion to the ↓ in hemoglobin
Iron Deficiency ... Anemia (IDA) Tests ... carrying component of blood ... • Iron - Amount ... #Deficiency #Anemia
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
Overall Approach to Anemia ... Diagnosis Algorithm Blood ... Deficiency • Aplastic Anemia ... • Anemia of Chronic ... Non-lmmune #Anemia
Dacrocytes (tear drop cells) 
Other poikilocytes resemble a pear or teardrop. The narrow, tapered end
may be
metaplasia, pernicious anemia ... some hemolytic anemias ... #Clinical #Path ... #BloodSmear #Blood
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
particular degree of anemia ... Index < 2: • Anemia ... deficiencies: Iron ... failure: Aplastic anemia ... Hospital-acquired anemia
Causes of Wide Pulse Pressure - Differential Diagnosis
Physiologic:
 • Advanced age-arteriosclerosis (less compliant arteries)
 • Well
hypovolemia - Severe iron ... deficiency anemia ... (reduced blood ... viscosity) - anemia ... - Chronic pulmonary