52 results
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Artifact (redo CBC ... Myelofibrosis Infectious ... effect following treatment ... Iron deficiency anemia ... Algorithm #Causes #Hematology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
→ Refer to hematology ... for workup, including ... hemolysis, deficiency anemia ... Rebound effect from treatment ... #Algorithm #hematology
Bandemia Overview

Normal: < 1%
Clinically significant: > 10%

Band neutrophils are slightly less mature than segmented neutrophils and
on the left Myeloblast ... Differential Diagnosis ... • Autoimmune diseases ... #differential #diagnosis ... #CBC #hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... - Differential Diagnosis ... inclusions - If infection ... #Algorithm #workup ... #hematology #testing
Red Blood Cell (RBC) Morphology Atlas
 • Microcytic - Iron-deficiency anemia, Thalassemia, Sideroblastic anemia, Lead poisoning
Red Blood Cell (RBC ... Myelodysplastic syndrome ... Hemolytic uremic syndrome ... Morphology #Atlas #key #diagnosis ... #differential #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Diagnostic Framework ... ) - HELLP syndrome ... Hemolytic uremic syndrome ... • Intrinsic RBC ... #hematology #anemia
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
- Differential Diagnosis ... Drug-associated, PCH, Evans Syndrome ... ) - Infections ... Defects: Sickle cell anemia ... #hematology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
and Workup History ... procedures - Infection ... decreased PLT count: CBC ... changes), high MCV anemia ... #hematology
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
- Differential Diagnosis ... Spherocytosis, G6PD, PK, HbC ... Macroangiopathic, Infections ... Non-megaloblastic: Liver disease ... #hematology
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
Chronic kidney disease ... (e.g. cancer, infection ... G6PD deficiency), Infections ... Production #Index #hematology ... #diagnosis #calculation