HomeRecall LibraryRecall LibraryPlatelet Factor 4 (PF4) Radioimmunoassay Recall: Instrumentation Laboratories Removes HemosIL AcuStar HIT-IgG(PF4-H)
FDA recall notice

Platelet Factor 4 (PF4) Radioimmunoassay Recall: Instrumentation Laboratories Removes HemosIL AcuStar HIT-IgG(PF4-H)

Product performance issue may lead to a false negative result which will delay recognition of heparin-induced thrombocytopenia.

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Source attribution: FDA. Published Oct 30, 2026.

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