|
The complaint investigation for observed falsely decreased white blood cell (wbc) results on the cell-dyn sapphire analyzer, serial number (b)(6), included a search for similar complaints, and the review of complaint text, trending data, labeling, and device history records.Return testing was not performed as returns were not available.Field service did not find any errors concerning sample aspiration fault.A vacuum error caused by clogged tubing was resolved by cleaning and flushing.A review of tracking and trending and did not identify any related trends.A review of device history review and did not identify any non-conformances or deviations related to the complaint issue.Labeling was reviewed and adequately addresses the issue under review.Review of the reports confirmed a dispersional data alert for the initial wbc result, indicating the need for the operator to follow a laboratory protocol, such as repeating the sample, performing a stained blood film review, or notifying the physician.Use error contributed to this event because the customer did not verify the initial result.Based on the investigation, no systemic issue or product deficiency was identified for cell dyn sapphire, serial number (b)(6).
|