Bleeding with normal PT/aPTT-See limitations
Test info
Bleeding with normal PT/aPTT
See limitations
Bleeding profile
Place individual test orders as indicated.
Tests commonly ordered for bleeding investigations in patients with normal PT/aPTT are listed below
von Willebrand screen (507/LAB507)
Factor 8 (638/LAB638)
Factor IX (13368/LAB13368)
Factor XI (13369/LAB13369)
Fibrinogen Activity (101/LAB101)
Factor VIII (994/LAB994)
Alpha-2 antiplasmin level (994/LAB994)
Plasminogen activator inhibitor activity (994/LAB994)
Specimen
Sodium citrate (Na cit) plasma
Lt blue Sodium citrate (NaCit) (2 - 4)
6 - 8mL dependent upon the number of tests ordered
Double spin to obtain platelet poor plasma (PPP) and freeze in appropriate number of aliquots according to the individual tests ordered.
Will require multiple frozen aliquots dependent upon the combination of tests ordered
Frozen
Performance
Varies - see individual test entries
Varies
Clinical and Interpretive info
Billing
See individual test entries
Tracking
09/13/2019
09/13/2019
01/08/2024