Lab
Notes - 1
The factor deficiencies that will prolong the PT are:
Those factors in
Common and Extrinsic pathways
VII, X, V, II and I if
<80 mg/dL or dysfibrinogenemia
What anticoagulant therapy
is monitored using the PT:
Oral anticoagulant
therapy
Coumadin, coumarin, or
warfarin
Normal range for PT:
10 – 12 seconds
Most common causes of
prolonged PT:
Vitamin K deficiency
Certain liver disease
Specific coagulation
factor deficiencies
D.I.C
Circulating
anticoagulants or oral anticoagulants
Fibrin Split Products
(FSP)