34 results
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
Causes of Prolonged ... PTT, Normal PT ... (INR) - Bleeding ... ) - No Bleeding ... #Hematology #coagulation
Von Willebrand Disease - Most common inherited bleeding disorder 
Clinical 
 • Easy bruising 
 •
common inherited bleeding ... • Prolonged bleeding ... aPTT (prolonged ... factor VIII) Treatment ... Disease #Diagnosis #Hematology
Hemophilia - Diagnosis and Management
Diagnosis:
 • Consistent bleeding history (unless screening for disease in family members
established disease) • aPTT ... mixing study (aPTT ... mild cases) • ... hemophilia type (e.g ... #hematology
Mixing Study
 • Clotting tests can be abnormal due to either a clotting factor deficiency, or
factor activity (e.g ... clotting test (e.g ... PT and/or aPTT) ... Study #diagnosis #hematology ... pathophysiology #hematology
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... Pre-analytical cause ... Jcortesizaguirr #Abnormal ... #Causes #diagnosis ... #differential #hematology
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Prolonged PT and aPTT ... the PT and the aPTT ... Causes include : ... amyloidosis #Abnormal ... #differential #hematology
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
Causes of Bleeding ... Destruction • Abnormal ... Rare • Drugs (e.g ... Coagulation #Bleeding ... #Hematology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
- History of bleeding ... epistaxis, gingival bleeding ... : INR/PT, aPTT(liver ... function test, ANA (e.g ... #Workup #hematology
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
Treatment: ... Treat primary cause ... INR < 2.3 - APTT ... #treatment #management ... #hematology
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Causes of Anemia ... Chronic Disease Normal ... 80-100 fL) • Bleeding ... Chronic Disease (e.g ... #Hematology