17 results
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
of Abnormal Coagulation ... Tests - Prolonged PT ... and Prolonged PT ... #Coagulation #Abnormal ... #Hematology #Diagnosis
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
to Evaluate an Abnormal ... the PT or APTT ... Prolonging the PT ... ISNeducation #Abnormal ... #diagnosis #hematology
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
(INR), Normal PTT ... , Normal PT (INR ... , Normal PT (INR ... Differential #Diagnosis #Algorithm ... #Causes #Hematology
Approach to Thrombotic Microangiopathy (TMA) - Differential Diagnosis and Management Algorithm

Suspected TMA: Unexplained thrombocytopenia + MAHA
and Management Algorithm ... /aPTT MAHA likely ... hemosiderin • PT ... /aPTT normal • ... #hematology
Mixing Study
 • Clotting tests can be abnormal due to either a clotting factor deficiency, or
Clotting tests can be abnormal ... an inhibitor of normal ... to have 50% of normal ... the test to be normal ... PT and/or aPTT)
Prolonged APTT - Diagnostic Algorithm

#Prolonged #APTT #PTT #abnormal #Diagnosis #Algorithm #hematology
Prolonged APTT - ... Diagnostic Algorithm ... #Prolonged #APTT ... #PTT #abnormal ... #hematology
Von Willebrand Disease - Most common inherited bleeding disorder 
Clinical 
 • Easy bruising 
 •
Laboratory • Normal ... type 2B) • Normal ... PT/INR • Normal ... aPTT (prolonged ... Disease #Diagnosis #Hematology
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
PT/NORMAL PTT: ... VIII level NORMAL ... PT/ABNORMAL PTT ... PT/NORMAL PTT: ... PT/ABNORMAL PTT
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... PT and/or aPTT ... Jcortesizaguirr #Abnormal ... #PT #aPTT #Prolonged ... #differential #hematology
ISTH Scoring System for Disseminated Intravascular Coagulation (DIC)
Platelet count:
 • Expected: Low (or normal)
 • Elevation
Expected: Low (or normal ... , aPTT: • Expected ... factors, Can be normal ... Expected: Low (or normal ... clots, Can be normal