17 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 ... #Prolonged #Causes ... #differential #hematology
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
Artifactually Prolonged ... to identify the cause ... of Prolonged APTT ... #prolonged #diagnosis ... #hematology #evaluation
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
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
Causes of Prolonged ... PTTProlonged ... PTTProlonged ... Diagnosis #Algorithm #Causes ... #Hematology #coagulation
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
Thrombocytopenia • Prolonged ... Treat primary cause ... INR < 2.3 - APTT ... Coagulation #diagnosis #causes ... treatment #management #hematology
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 Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... Toxic Damage (e.g ... • TTP/HUS • DIC ... Diagnosis #Algorithm #Causes ... #Hematology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Causes of Thrombocytopenia ... : INR/PT, aPTT(liver ... function test, ANA (e.g ... or if a primary hematologic ... #Workup #hematology
Hemophilia - Diagnosis and Management
Diagnosis:
 • Consistent bleeding history (unless screening for disease in family members
is prolonged, but ... mixing study (aPTT ... normal in mild cases ... hemophilia type (e.g ... Management #treatment #hematology
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