Abbott i-STAT 1 System Manual page 472

Factors Affecting Results*
*It is possible that other interfering substances may be encountered. These results are representative and your results may differ somewhat due to
test-to-test variation. The degree of interference at concentrations other than those listed might not be predictable.
Heparin sensitivity was demonstrated using whole blood samples to which varying concentrations of
heparin were added in vitro.
The five graphs below each indicate the response of a different donor with respect to heparin concentration:
Celite ACT - 4
Art: 714185-01P Rev. Date: 01-Jul-13