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

Dr.
Algorithm for Investigation ... aPTT and Prolonged ... aPTT Dr. ... DrEricStrong #Algorithm ... Coagulation #Abnormal #APTT
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
: Is the PT or APTT ... Artifactually Prolonged ... Prolonging the PT or APTT ... identify the cause of Prolonged ... #prolonged #diagnosis
Prolonged APTT - Diagnostic Algorithm

#Prolonged #APTT #PTT #abnormal #Diagnosis #Algorithm #hematology
Prolonged APTT - ... Diagnostic Algorithm ... #Prolonged # ... APTT #PTT #abnormal ... #Diagnosis #Algorithm
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
PTTProlonged ... PTTProlonged ... • Prolonged PTT ... PTT, Normal PT ... Differential #Diagnosis #Algorithm
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Abnormal PT and/or aPTT ... aPTT) 3. ... the aPTT alone ... PT and aPTT 1. ... #Abnormal #PT #aPTT
Von Willebrand Disease - Most common inherited bleeding disorder 
Clinical 
 • Easy bruising 
 •
bleeding • Prolonged ... INR • Normal aPTT ... (prolonged if very ... factor VIII) Treatment
Approach to Elevated aPTT / PT - Differential Diagnosis Algorithm

aPTT: Intrinsic / Final
PT: Extrinsic / Final

By
Approach to Elevated aPTT ... Differential Diagnosis Algorithm ... aPTT: Intrinsic ... #Elevated #aPTT ... #PT #INR #Algorithm
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Diagnosis for a Prolonged ... PT and aPTT If ... the PT and the aPTT ... are both prolonged ... #Abnormal #PT #aPTT
Hemophilia - Diagnosis and Management
Diagnosis:
 • Consistent bleeding history (unless screening for disease in family members
established disease) • aPTT ... is prolonged, but ... mixing study (aPTT ... Classify severity Treatment ... by a hemophilia treatment
Approach to Thrombotic Microangiopathy (TMA) - Differential Diagnosis and Management Algorithm

Suspected TMA: Unexplained thrombocytopenia + MAHA
and Management Algorithm ... antiglobulin test, PT/aPTT ... hemosiderin • PT/aPTT ... Diagnosis #Management #Algorithm