12 results
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... Pre-analytical cause ... intravascular coagulation ... (DIC) c. ... #Prolonged #Causes
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
Causes of Prolonged ... PTTProlonged ... PTTProlonged ... Diagnosis #Algorithm #Causes ... #Hematology #coagulation
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
PT and aPTT If ... the PT and the aPTT ... intravascularcoagulation (DIC ... #Prolonged #Causes ... differential #hematology #coagulation
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
(DIC) Overview ... Thrombocytopenia • Prolonged ... Treat primary cause ... INR < 2.3 - APTT ... #diagnosis #causes
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
Visual Guide to AV ... Nodal Reentrant ... Pathophysiology - Dual AV ... - In most case ... ECG usually shows
Causes of Post-Partum Hemorrhage - Differential Diagnosis Algorithm
Blood Loss: >500mL post vaginal delivery OR >1000 mL
Causes of Post-Partum ... . prolonged/induced ... intravascular coagulation ... (DIC) • Anti-coagulation ... Diagnosis #Algorithm #Causes
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Extravascular Causes ... intravascular coagulation ... (DIC) - HELLP ... (usually IgG) (e.g ... Extravascular #Causes
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
inhibitor of a coagulation ... the PT remains prolonged ... Warfarin • Acute DIC ... discern these causes ... disease • Acute DIC
Shock - Differential Diagnosis by Classification
Reflex Syncope 
 - Vasovagal syncope
   • Prolonged standing
syncope • Prolonged ... • AV block ... Medication side effect (e.g ... Medication side effect (e.g ... Classification #Table #Causes
Hemophilia - Diagnosis and Management
Diagnosis:
 • Consistent bleeding history (unless screening for disease in family members
established disease) • aPTT ... is prolonged, but ... mixing study (aPTT ... normal in mild cases ... hemophilia type (e.g