111 results
Mixing Study
 • Clotting tests can be abnormal due to either a clotting factor deficiency, or
Study • Clotting tests ... clotting factor deficiency ... Patient has a factor deficiency ... Study #diagnosis #hematology ... pathophysiology #hematology
Causes of Neutropenia with Pancytopenia - Differential Diagnosis Algorithm
Sequestration:
 • Splenomegaly
Marrow Infiltration:
 • Hematologic and non-hematologic
Pancytopenia - Differential ... and non-hematologic ... Myelodysplasia Nutritional deficiency ... #Neutropenia #Differential ... Algorithm #Causes #Hematology
Thrombocytosis - Differential Diagnosis
Platelet Count > 450
Reactive:
 • Anemia/blood loss (Fe deficiency)
 • Infection/Sepsis
 • Non-infectious
Thrombocytosis - Differential ... blood loss (Fe deficiency ... Non-infectious (malignancy, rheumatologic ... Thrombocytosis #Differential ... causes #Platelets #hematology
Causes of Diffuse and Localized Lymphadenopathy - Differential Diagnosis Algorithm
 • Reactive (Inflammatory / Infectious)
 •
Lymphadenopathy - Differential ... Lymphadenopathy #LAD #Differential ... Algorithm #Causes #Hematology ... #Oncology
Diagnosing Vitamin B12 and/or Folate Deficiency

It turns out that simply measuring serum levels of B12 or
with low B12 stores ... normal tissue stores ... the first line tests ... tissue folate stores ... Diagnosis #Nutrition #Hematology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Platelet Count - Differential ... → Refer to hematology ... Acute hemolysis, deficiency ... Inflammatory Conditions: Rheumatologic ... Diagnosis #Algorithm #hematology
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Thrombocytosis - Differential ... Non malignant hematologic ... malignancy • Iron deficiency ... Thrombocytosis #Differential ... Algorithm #Causes #Hematology
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Allopecia - Differential ... Capitis - Skin ... disease • Pull test ... Examine the entire skin ... Initial Laboratory Tests
Approach to Hypoproliferative Macrocytic Anemia

 • 812, Folate Deficiency
 • MDS+
 • Hypothyroid
 • Liver Disease
• 812, Folate Deficiency ... Macrocytic #Anemia #differential ... diagnosis #algorithm #hematology
Prothrombin Time (PT) and Partial Thromboplastin Time (PTT)

Prothrombin Time (PT) - Often Elevated in:
 • Vitamin
• Vitamin K deficiency ... • Factor VII deficiency ... • Underfilled test ... II, fibrinogen deficiency ... Thromboplastin #laboratory #hematology