14 results
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
PTTProlonged ... PTTProlonged ... PTTProlonged ... PTT, Normal PT ... PTT, Normal PT
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
Step 1: Is the PT ... Prolonging the PT ... to identify the cause ... of Prolonged APTT ... mixing #studies #PTT
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
PT - Prolonged ... aPTT and Prolonged ... PT - Prolonged ... aPTT Dr. ... #Laboratory #Hematology
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
PT and/or aPTT ... Time (PT) 1. ... PT too 2. ... PT and aPTT 1. ... #Abnormal #PT
Prothrombin Time (PT) and Partial Thromboplastin Time (PTT)

Prothrombin Time (PT) - Often Elevated in:
 • Vitamin
Prothrombin Time (PT ... Thromboplastin Time (PTT ... Prothrombin Time (PT ... Thromboplastin Time (PTT ... #PTT #Prothrombin
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 ... aPTT are both prolonged ... #Abnormal #PT ... #aPTT #Prolonged
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
Thrombocytopenia • Prolonged ... PT/PTT • Low ... Fibrinogen: ↓ • PT ... /INR: ↑ • PTT: ... INR < 2.3 - APTT
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
== NORMAL PT ... /NORMAL PTT: • ... /ABNORMAL PTT: ... Perform a PTT mixing ... PTT suggests liver
Von Willebrand Disease - Most common inherited bleeding disorder 
Clinical 
 • Easy bruising 
 •
bleeding • Prolonged ... 2B) • Normal PT ... INR • Normal aPTT ... (prolonged if very ... Disease #Diagnosis #Hematology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
for decreased PLT ... for decreased PLT ... : INR/PT, aPTT(liver ... (CVID, WAS), (neurologic ... #Workup #hematology