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This report summarizes malfunction events.A review of the events indicated that one (1) patient sample tested on the neo iris automated blood bank system produced an unexpected negative result for anti-e.The result represented a false negative due to prior patient history or, testing completed by other methods that demonstrated the presence of the specific antibody.A review of four (4) patient sample events on the neo iris indicated unexpected abo/rh phenotype results during forward testing versus prior test results or, tube/gel test results covering anti-d, weak d and anti-b.Through post event tests and investigations, no specific causes were determined for the malfunctions.
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