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

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
Thrombocytopenia • Prolonged ... PT/PTT • Low ... protein C and S Pathophysiology ... Fibrinogen: ↓ • PT ... #diagnosis #causes
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
inhibitor of a coagulation ... PT/NORMAL PTT: ... prolonged after ... intravascular coagulation ... discern these causes
Bleeding manifestations 
Petechiae are small, flat, red, discrete areas of skin bleeding that are typically <2
ecchymosis) is caused ... are typical of coagulation ... Excessive bruising & prolonged ... to be normal, PT ... Measurement of coagulation