Health Canada — Medical Devices · Canada · 2016-01-22 · Type III
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Reported risk: Not meeting the current High-Dose Hook Effect expectation in the Instructions For Use (IFU). The ADVIA Centaur systems PSA assay range is 0.01-100 ng/mL (μg/L). The ADVIA Centaur Systems PSA IFU states that patient samples with high total PSA levels can cause a paradoxical decrease in the Relative Light Units (RLUs) (high-dose hook effect). In this assay, patient samples with total PSA levels as high as 10,000 ng/mL (μg /L) will assay greater than 100 ng/mL (μg/L).
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