58 results
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
Causes of Prolonged ... PTT • Prolonged ... #Differential #Diagnosis ... #Algorithm #Causes ... #Hematology #coagulation
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
Investigation of Abnormal Coagulation ... PT - Prolonged ... #Algorithm #Coagulation ... APTT #Laboratory #Hematology ... #Diagnosis #Workup
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... e.g. heparin ... #Causes #diagnosis ... #differential #hematology ... #coagulation
Summary of Coagulation Deficiencies
Inherited:
 • Hemophilia A - Deficiency of Factor VIII
 • Hemophilia B -
Summary of Coagulation ... Medications - Heparin ... Deficiencies #Summary #table ... #comparison #diagnosis ... #hematology #deficiency
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Differential Diagnosis ... (e.g. heparin contamination ... #Causes #diagnosis ... #differential #hematology ... #coagulation
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
Causes of Bleeding ... - Differential Diagnosis ... Rare • Drugs (e.g ... #Algorithm #Causes ... #Hematology
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
Artifactually Prolonged ... K Antagonists, Heparin ... to identify the cause ... of Prolonged APTT ... #diagnosis #hematology
Causes of Splenomegaly - Differential Diagnosis Algorithm
Infectious
 • Bacterial
 • Viral (EBV)
 • Parasitic
 • Fungal
Congestive
Causes of Splenomegaly ... - Differential Diagnosis ... Hepatic, Portal, ... #Differential #Diagnosis ... #Hematology
Thrombotic Microangiopathies - Primary Thrombotic Microangiopathy (TMA) - Differential Diagnosis Table

 • Thrombotic Thrombocytopenic Purpura (TTP)
- Differential Diagnosis ... Table • Thrombotic ... Metabolism-mediated TMA - Coagulation-mediated ... Microangiopathy #TMA #hematology ... #differential #diagnosis
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Differential Diagnosis ... vascular disorders, coagulation ... Cholesterol emboli • Septic ... #Differential #Diagnosis ... #hematology #rheumatology