110 results
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Red Blood Cell ( ... Iron deficiency anemia ... anemia (sometimes ... , McLeod blood group ... differential #diagnosis #hematology
Red Blood Cell (RBC) Morphology Atlas
 • Microcytic - Iron-deficiency anemia, Thalassemia, Sideroblastic anemia, Lead poisoning
Red Blood Cell ( ... RBC) Morphology ... Myelodysplastic syndrome ... Hemolytic uremic syndrome ... #differential #hematology
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Artifact (redo CBC ... Myelofibrosis Infectious ... disorders • Celiac disease ... effect following treatment ... Iron deficiency anemia
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
the peripheral blood ... Chronic kidney disease ... (e.g. cancer, infection ... G6PD deficiency), Infections ... Production #Index #hematology
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Algorithm Normal Blood ... Myelodysplastic Syndromes ... Cells, Normal WBCs ... • Liver Disease ... Algorithm #Causes #Hematology
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Drug-associated, PCH, Evans Syndrome ... ) - Infections ... Defects: Sickle cell anemia ... - Peripheral Blood ... Differential #Diagnosis #hematology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
: Acute blood loss ... hemolysis, deficiency anemia ... Rebound effect from treatment ... Vasculitides, IBD, Celiac disease ... Kawasaki, Nephrotic syndrome
Bandemia Overview

Normal: < 1%
Clinically significant: > 10%

Band neutrophils are slightly less mature than segmented neutrophils and
of peripheral blood ... • Autoimmune diseases ... cultures, including blood ... superior indicator of infection ... #CBC #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
) - HELLP syndrome ... Hemolytic uremic syndrome ... • Intrinsic RBC ... differential #diagnosis #hematology ... #anemia
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
Overall Approach to Anemia ... Diagnosis Algorithm Blood ... • Anemia of Chronic ... Disease • Marrow ... Algorithm #Causes #Hematology