Normal. Standard coag studies don't decrease even in hypercoagulable states.
However, if activated protein C were to be added to a PTT for a patient with Factor V Leiden there would be no/little change while a normal patient would have increased PTT.
[QUOTE="if activated protein C were to be added to a PTT for a patient with Factor V Leiden there would be no/little change while a normal patient would have increased PTT.[/QUOTE]