15 results
diagnosis differential prolonged abnormal aptt algorithm arterial intravascular management pathophysiology ptt thrombosis treatment venous anemia anticoagulant anticoagulation apixaban bleeding bruising
Causes of Prolonged PT (INR), Prolonged PTT • Prolonged PT (INR), Prolonged PTT • Prolonged PT
Causes of Prolonged ... PT (INR), Prolonged ... • Prolonged PT ... Diagnosis #Algorithm #Causes ... #Hematology #coagulation
Disseminated Intravascular Coagulation (DIC) Overview Increased Clotting and Consumption of Clotting Factors Findings: • Bleeding • Recent history
• Prolonged PT ... Fibrinogen: ↓ • PT ... Treat primary cause ... #diagnosis #causes ... treatment #management #hematology
Causes of Abnormal PT and/or aPTT Prolonged Prothrombin Time (PT) 1. Acquired deficiency of FVII
Causes of Abnormal ... unfractionated heparin ... e.g. heparin ... #differential #hematology ... #coagulation
Differential Diagnosis for a Prolonged PT and aPTT If the PT and the aPTT are both prolonged,
for a Prolonged PT ... (e.g. heparin contamination ... thrombin inhibitors, heparin ... #differential #hematology ... #coagulation
Causes of Arterial and Venous Thrombosis - Differential Diagnosis Framework STRUCTURAL: - PFO: paradoxical emboli - Popliteal
Causes of Arterial ... artery aneurysm: Causes ... intravascular coagulation ... neoplasms - PNH ... Diagnosis #clots #hematology
Purpura - Differential Diagnosis Framework Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
vascular disorders, coagulation ... Platelet defects • Coagulation ... deficiencies - PNH ... Cholesterol emboli • Septic ... Differential #Diagnosis #hematology
How to Evaluate an Abnormal APTT Step 1: Is the PT or APTT Artifactually Prolonged? Step 2: Is
Step 1: Is the PT ... K Antagonists, Heparin ... Prolonging the PT ... to identify the cause ... prolonged #diagnosis #hematology
The coagulation cascade is shown, separated into different phases with their endogenous and pharmacological inhibitors shown.
The coagulation ... #Coagulation #Cascade ... thrombin #clot #PT ... diagnosis #models #hematology ... Rivaroxaban #Edoxaban #heparin
Venous Thrombosis vs Arterial Thrombosis - Differential Diagnosis Framework VENOUS THROMBOSIS • Acquired Risk Factors: - >48 hours
Hyperhomocysteinemia - Heparin-induced ... intravascular coagulation ... and other causes ... - COVID-19 - PNH ... pathophysiology #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes Intravascular Hemolysis: • Mechanical Trauma (Microangiopathic hemolytic anemia):
Extravascular Causes ... intravascular coagulation ... hemoglobinuria (PNH ... Extravascular #Causes ... differential #diagnosis #hematology
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