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

Dr.
Algorithm for Investigation ... of Abnormal Coagulation ... DrEricStrong #Algorithm ... #Coagulation #Abnormal ... #APTT #Laboratory
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
PTT, Normal PT ... (INR) - Bleeding ... ) - No Bleeding ... Differential #Diagnosis #Algorithm ... Causes #Hematology #coagulation
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
• Prolonged PT/PTT ... venipuncture sites Laboratory ... Thrombocytopenia - Normal ... INR < 2.3 - APTT ... < 1.5 x normal
Effect of Anticoagulants on Coagulation Tests
PT / INR, aPTT, Anti-Xa Activity, Activated Clotting Time, Thrombin Time,
Anticoagulants on Coagulation ... Tests PT / INR, aPTT ... Anticoagulation #Testing ... #Diagnosis #Laboratory
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
PT/NORMAL PTT: ... PT/ABNORMAL PTT ... /NORMAL PTT: Suggests ... PT/ABNORMAL PTT ... fibrinogen levels, and testing
Von Willebrand Disease - Most common inherited bleeding disorder 
Clinical 
 • Easy bruising 
 •
common inherited bleeding ... bruising • Skin bleeding ... • Prolonged bleeding ... GI. uterine) Laboratory ... aPTT (prolonged
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
Causes of Bleeding ... Differential Diagnosis Algorithm ... Destruction • Abnormal ... #Bleeding #Bruising ... Differential #Diagnosis #Algorithm
ISTH Scoring System for Disseminated Intravascular Coagulation (DIC)
Platelet count:
 • Expected: Low (or normal)
 • Elevation
Intravascular Coagulation ... aggregation PT, aPTT ... consumption of coagulation ... Intravascular #Coagulation ... diagnosis #hematology #laboratory