Factor XII Activity
Alternate Names
086322 LC, Hageman Factor, Surface Factor
SoftLab Order Code
FXII
Epic Order Name
FACTOR XII ACTIVITY, REF LAB LC 086322
Epic Order ID
LAB310
Laboratory
Reference lab
Sample Type
Plasma
Collection Container
Blue Top (Sodium Citrate - Light blue)
Collecting Volume
One full light blue top tube
Minimum Collecting Volume
One full light blue top tube
Storage or Stability
Frozen
Causes for Rejection
Hemolysis, clotted specimen, samples thawed in transit
Patient Preparation
Ideally, the patient should not be on anticoagulant therapy. Avoid warfarin (Coumadin®) therapy for two weeks prior to the test and heparin, direct Xa, and thrombin inhibitor therapies for about three days prior to testing. Do not draw from an arm with a heparin lock or heparinized catheter.