Stains, Hematology（KQC）

The fluorescent platelet counts (PLT-F) and immature platelet fraction (IPF) values can be falsely low when using affected lots of Fluorocell PLT.

There is potential that fluorescent platelet (PLT-F) and immature platelet fraction (IPF%, #) results obtained using the lots listed above may exhibit lower than actual PLT-F and IPF values. The issue may be recognized by a large discrepancy between the impedance platelet (PLT-I) result and the PLT-F result. In most cases, the falsely decreased PLT-F results display a PLT Abn Scattergram message with an asterisk beside the result or an Action Message: Difference between PLT and PLT- F. Check the results. These are indicators of unreliable data. In rare instances, platelet flags may be absent. The PLT-I results are unaffected.

There is a potential that fluorescent platelet (PLT-F) and immature platelet fraction (IPF%) results performed using the recalled lots may exhibit lower than expected PLT-F and IPF values. The issue may be recognized by a large discrepancy between the Impedance platelet (PLT-I) value and a false low PLT-F value. In most cases, the falsely decreased PLT-F results displayed a "PLT Abn Scattergram" message with asterisks beside the results indicating the data is unreliable. In rare instances, platelet flags may be absent. The PLT-I counts are unaffected. The PLT-F is a reflex test used to confirm PLT-I results due to flagging or low values. As such, the likely impact to patient results is low. Affected results display a discrepancy between the PLT-I and PLT-F, with lower than expected PLT-F results that do not match the patient's clinical picture.