79 results
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Causes of Anemia ... of Chronic Disease ... of Chronic Disease ... , Chronic Infection ... #Hematology
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... Myelofibrosis Infectious ... disorders • Celiac disease ... effect following treatment ... Iron deficiency anemia
Diagnostic Framework for Anemia (Morphological Approach - MCV)
Low MCV - <80fL - "Microcytic"
 • Iron deficiency
disease, Acute ... Megaloblastic: Vitamin B12 ... Alcohol use, Liver disease ... differential #diagnosis #causes ... #hematology
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
loss), Vitamin B12 ... kidney disease, ... (e.g. cancer, infection ... G6PD deficiency), Infections ... Production #Index #hematology
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
Deficiency • B12 ... • Anemia of Chronic ... Disease • Marrow ... Diagnosis #Algorithm #Causes ... #Hematology
Causes of Fatigue - Differential Diagnosis Algorithm
Endocrine
 • Hypo/Hyperthyroidism
 • Diabetes
 • Pituitary Insufficiency
 • Adrenal
Neoplastic / Hematologic ... • Anemia • ... Malignancy Infectious ... Obstructive Pulmonary Disease ... Myasthenia Gravis Pharmacologic
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
→ Refer to hematology ... hemolysis, deficiency anemia ... Rebound effect from treatment ... Vasculitides, IBD, Celiac disease ... : Chronic infections
Myelodysplastic Syndrome (MD) - Diagnosis and Management Summary
myelo (marrow) -dys- (abnormal) -plastic (shape) = funny-shaped cells
old, ~10,000 new cases ... cytopenias (usually anemia ... risk-stratification • Risks: infection ... only curative treatment ... #hematology #oncology
Causes of Iron Deficiency
 • Inadequate Intake: Vegetarian/vegan diet, Malnutrition
 • Increased Body Needs: Infants/preschoolers, Pregnancy,
Causes of Iron Deficiency ... Pregnancy, EPO treatment ... Elite athletes • Chronic ... Loss (without anaemia ... Pylori • Hookworm infection
Vibrio Vulnificus skin infection
Cirrhosis w/recent consumption of raw oysters w/rapidly evolving rash. 
Vibrio vulnificus part of
🦪 🦀 sepsis: chronic ... liver disease, ... hemochromatosis, hemolytic anemia ... Diseases Fellowship ... #legs #clinical