18 results
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
• Secondary (e.g ... Bleed • Hemolysis ... Spherocytes, RBC ... Microangiopathic Hemolytic ... Algorithm #Causes #Hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
(usually IgG) (e.g ... (usually IgM) (e.g ... • Intrinsic RBC ... deficiencies (e.g ... differential #diagnosis #hematology
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Chemotherapy (e.g ... Microangiopathic Hemolytic ... spherocytosis, Autoimmune hemolytic ... Cold autoimmune hemolytic ... differential #diagnosis #hematology
Anemia Diagnostic Algorithm

Mean corpuscular (cell) volume (MCV): Average RBC size. Under 80 = microcytic. Between 80-95
(MCV): Average RBC ... acute blood loss, hemolysis ... of substrate (e.g ... Algorithm #Diagnosis #Workup ... #Hematology #Microcytic
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
transform into a RBC ... infiltration (e.g ... Marrow suppression (e.g ... defects (e.g. sickle ... Production #Index #hematology
Peripheral Blood Smear Analysis
Hypochromia
Megaloblastic Anemia
Schistocytes: Microangiopathic hemolytic anemia (e.g. DIC, TTP, HUS)
Microspherocytes: Autoimmune hemolytic anemia
Sickled red
Microangiopathic hemolytic ... anemia (e.g. ... Microspherocytes: Autoimmune hemolytic ... Smear #Analysis #hematology ... interpretation #clinical
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
-100): • Non-hemolytic ... anemia, CKD • Hemolytic ... Spherocytosis, G6PD, PK, HbC ... aciduria, Drugs (e.g ... Differential #Diagnosis #hematology
Causes of Anemia with Low Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased Heme Synthesis or
- Fe/TlBC, MCV/RBC ... Iron Deficiency (Eg ... Other • e.g ... HgbE, HgbC, etc. ... Algorithm #Causes #Hematology
Approach to the Hypercoagulable State
Arterial thromboembolism
→ Cardiac rhythm monitoring, Echocardiogram, Vascular imaging
→ Test for APS, particularly
• Provoked (e.g ... - No other workup ... cancer screening, CBC ... #hematology #diagnosis ... #algorithm #hematology
Peripheral blood findings in microangiopathic hemolytic anemia.  DIC is a clinical and laboratory diagnosis, not
microangiopathic hemolytic ... DIC is a clinical ... Microangiopathic hemolytic ... count, D-dimer, egg ... #anemia #Hematology