12 results
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
Evaluate an Abnormal APTT ... : Is the PT or APTT ... Patient Receiving Anticoagulants ... to identify the cause ... prolonged #diagnosis #hematology
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
Causes of Prolonged ... Normal PT (INR) - Bleeding ... PT (INR) - No Bleeding ... Diagnosis #Algorithm #Causes ... #Hematology #coagulation
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... Congenital deficiency ... heparin - Other anticoagulants ... Congenital intrinsic ... #differential #hematology
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
Causes of Bleeding ... Vascular System - Congenital ... Coagulation #Bleeding ... Diagnosis #Algorithm #Causes ... #Hematology
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
Reduction of pro/anticoagulants ... Treat primary cause ... INR < 2.3 - APTT ... Coagulation #diagnosis #causes ... treatment #management #hematology
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
syndrome • Lupus anticoagulant ... discern these causes ... deficiency • Anticoagulants ... deficiency • Anticoagulant ... Differential #Diagnosis #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 : ... synthesis : • Congenital ... #differential #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 ... or if a primary hematologic ... #Workup #hematology
Hemophilia - Diagnosis and Management
Diagnosis:
 • Consistent bleeding history (unless screening for disease in family members
• Consistent bleeding ... established disease) • aPTT ... mixing study (aPTT ... normal in mild cases ... Management #treatment #hematology
Tranexamic Acid - Indications and Pharmacology
Pharmacokinetics:
 • MOA: Inhibits plasminogen activation to plasmin & inhibits fibrinolysis
Indications and Pharmacology ... : Urine Common Uses ... Hemoptysis, GI Bleeding ... #Indications #Pharmacology ... #hematology