Yes <150

NA Not stated

NA Not stated

Yes Clotting and


TABLE 2 The Frequency of HIT: Prospective Studies of HIT in Medical Patients Using In Vitro Testing of Patient Serum/Plasma for HIT Antibodies or Indicating a High Likelihood of HIT Based on Timing of Platelet Count Fall (Continued)


Major indication In vitro for heparin test

Route, dose

Bovine UFH

Porcine UFH

- Timing of Definition of platelet count thrombocytopenia LMWH fall reported? (109/L)

Skouri et al., 2006

Pediatric EIA, HIPA

chronic HD

iv ther

Not stated

Healthy volunteers Saffle etal., 1980 Schwartz et al., 1985

0 0

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