Partial Thromboplastin Time
What is Partial Thromboplastin Time (PTT) in terms of Nursing Labs?
Partial Thromboplastin Time (PTT)evaluates the function of factors I, II, V, VIII, IX, X, XI, and XII. PTT represents the amount of time required for a fibrin clot to form. Monitors therapeutic ranges for people taking Heparin.
What are the Indications for Partial Thromboplastin Time?
- Detection of coagulation disorders
- Evaluate response to Heparin (PT for Coumadin)
- Preoperative assessment
What would cause increased levels of Partial Thromboplastin Time?
- Disseminated Intravascular Coagulation (DIC)
- Clotting Factor Deficiencies:
- Von Willebrand Disease
- Liver disease:
- Vitamin K deficiency
Date Published - Jul 19, 2016
Date Modified - Jun 21, 2019