30 results
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
Causes of Prolonged ... PT (INR), Normal ... #Differential #Diagnosis ... #Algorithm #Causes ... #Hematology #coagulation
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
Investigation of Abnormal ... PT - Prolonged ... #Coagulation #Abnormal ... APTT #Laboratory #Hematology ... #Diagnosis #Workup
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
to Evaluate an Abnormal ... Artifactually Prolonged ... to identify the cause ... #APTT #prolonged ... #diagnosis #hematology
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Causes of Polycythemia ... - Differential Diagnosis ... Algorithm Relative - Normal ... Positive - Low/Normal ... #Hematology
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... Pre-analytical cause ... Jcortesizaguirr #Abnormal ... #Causes #diagnosis ... #differential #hematology
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Differential Diagnosis ... for a Prolonged ... amyloidosis #Abnormal ... #Causes #diagnosis ... #differential #hematology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
three primary pathophysiologic ... causes differentiated ... Idiopathic • Normal ... With associated pulmonary ... #differential #diagnosis
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) ... antigen (vWF:Ag) are normal ... Management #treatment #hematology
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
Thrombocytopenia • Prolonged ... protein C and S Pathophysiology ... #Coagulation #diagnosis ... #causes #treatment ... #management #hematology
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
activity is the diagnostic ... available for rapid diagnosis ... levels - Usually normal ... products or D-dimer - Normal ... #Workup #Hematology