42 results
Calculating a Reticulocyte Index (RI)
Reticulocyte Index = Absolute Reticulocyte Count / Maturation Correction
Absolute Reticulocyte Count =
reticulocytes x Patient's Hct ... / Normal Hct ... Index #RI #RPI #hematology
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Thrombocytosis - Differential ... Inflammatory: • IBD ... malignancy • Iron deficiency ... Thrombocytosis #Differential ... Algorithm #Causes #Hematology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Platelet Count - Differential ... → Refer to hematology ... Acute hemolysis, deficiency ... Thrombocytosis #Platelets #Differential ... Diagnosis #Algorithm #hematology
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
Bleeding / Bruising - Differential ... Destruction • Abnormal ... • Factor VIII Deficiency ... Bleeding #Bruising #Differential ... Algorithm #Causes #Hematology
Erythrocytosis - Polycythemia Differential Diagnosis Algorithm

Elevated Hemoglobin:
 • Males: Hb > 16.5 g/dL/HCT ≥ 49%
 •
- Polycythemia Differential ... Hb > 16.5 g/dL/HCT ... : Hb > 16 g/dL/HCT ... ), TEMPI (VEGF normal ... Diagnosis #Algorithm #hematology
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Volume (MCV) - Differential ... • Dietary Deficiency ... B12 and Folate Deficiency ... #elevatedMCV #Differential ... Algorithm #Causes #Hematology
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
Volume (MCV) - Differential ... Anemias (MAHA) - Abnormal ... • Early Iron Deficiency ... Normocytic #Anemia #Differential ... Algorithm #Causes #Hematology
Iron Deficiency Anemia - Differential Diagnosis Algorithm

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

 • Blood loss:
Iron Deficiency ... Anemia - Differential ... Tropical sprue, IBD ... #Anemia #Differential ... Algorithm #ferritin #hematology
Elevated Liver Enzymes - Differential Diagnosis Algorithm
Severe ALT > 15x ULN
 • Viral
 • Drugs/Toxins
 •
Liver Enzymes - Differential ... NAFLD • Others Mild ... • AIH • A1AT deficiency ... disease US — Normal ... Others #LFTs #Hepatology
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Volume (MCV) - Differential ... 80 fL) • Iron Deficiency ... Chronic Disease Normal ... Classification #Differential ... Algorithm #Causes #Hematology