8 results
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
Causes of Prolonged ... PT (INR), Normal ... PTT, Normal PT ... Differential #Diagnosis #Algorithm ... #coagulation #disorders
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... Pre-analytical cause ... Jcortesizaguirr #Abnormal ... #PT #aPTT #Prolonged ... #Causes #diagnosis
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
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 ... amyloidosis #Abnormal ... #PT #aPTT #Prolonged ... differential #hematology #coagulation
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
PT/NORMAL PTT: ... PT/ABNORMAL PTT ... ) ABNORMAL PT ... prolonged after ... PT/ABNORMAL PTT
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
Causes of Bleeding ... Differential Diagnosis Algorithm ... Destruction • Abnormal ... Congenital • Factor ... Deficiency • Factor
Hemophilia - Diagnosis and Management
Diagnosis:
 • Consistent bleeding history (unless screening for disease in family members
disease) • aPTT is prolonged ... study (aPTT may be normal ... in mild cases) ... • PT/INR & von ... antigen (vWF:Ag) are normal
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 ... , PT should be normal ... Measurement of coagulation