Plt
Aggregometry with Whole-blood
Procedure:
Saline-diluted whole-blood added to
cuvette
Type of
tracing produced:
Agonist is added to solution
Platelets form aggregates on
electrodes
Parallel electrodes placed in
solution – 370C
The tracing resembles that of PRP
method
Current versus time is plotted
Don’t have to make PRP suspension
Change in current flow is directly
proportional to amount of aggregates formed
A small current is applied between
electrodes
Advantage over
PRP procedure: