Congenital factor deficiencies
- Contact factors (no clinical bleeding)
- Factor XII (no clinical bleeding)
- Factor XI
- Factor IX (hemophilia B)
- Factor VIII (hemophilia A)
- Factor VIII (von Willebrand's disease)
- Factor I (afibrinogenemia)
- Factor VIII inhibitor (postpartum, idiopathic, or after factor VIII infusions)
- Lupus anticoagulant (no clinical bleeding)
- Warfarin (PT increased more than PTT)
- Disseminated intravascular coagulation (PT & PTT increased)
- Liver disease (PT increased more than PTT)
- Vitamin K deficiency (PT increased more than PTT)
There's more to see -- the rest of this topic is available only to subscribers.
Zeiger, Roni F.. "PTT Increased." Diagnosaurus, 4th ed., McGraw-Hill Education, 2015. Emergency Central, emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114681/all/PTT_increased.
Zeiger RFR. PTT increased. Diagnosaurus. McGraw-Hill Education; 2015. https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114681/all/PTT_increased. Accessed June 4, 2023.
Zeiger, R. F. (2015). PTT increased. In Diagnosaurus (4th ed.). McGraw-Hill Education. https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114681/all/PTT_increased
Zeiger RFR. PTT Increased [Internet]. In: Diagnosaurus. McGraw-Hill Education; 2015. [cited 2023 June 04]. Available from: https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114681/all/PTT_increased.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - PTT increased ID - 114681 A1 - Zeiger,Roni F, BT - Diagnosaurus UR - https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114681/all/PTT_increased PB - McGraw-Hill Education ET - 4 DB - Emergency Central DP - Unbound Medicine ER -