HIT
Testing - 1
Principle of
all methods:
Detectable levels of free
heparin-induced antiplatelet antibodies must be present in the serum or plasma of patient
Principle:
Serum/plasma from patient
is added to platelet-rich-plasma of normal donor. Heparin is then added and
aggregation of platelets is monitored for 20 minutes.
Donor of same ABO blood
type
Platelet aggregation techniques:
Restrictions:
Donor aspirin free for
10-14 days