No customer returns were available.Investigation of the customer issue included a review of the complaint text, a search for similar complaints and a review of labeling.Historical quality metrics were reviewed and no adverse trend was identified for the customer's issue.Complaint searches determined that there is normal complaint activity for the likely cause lot.Labeling was reviewed and found to be adequate.Testing of a serum based panel sample with a target concentration of 3.5 ng/ml, which mimics a patient sample, was performed using an in-house retained kit of lot 73007fn00 stored at the recommended storage condition.All specifications were met indicating that lot 73007fn00 is performing acceptably.Historical performance of the reagent lot was evaluated using world wide data from abbott link.The patient data was analyzed and compared to an established control limit.This evaluation indicated that the patient median result for this lot is within the established control limits which indicates that the lot is performing acceptably and comparable to other lots in the field.Based on the available information, no product deficiency of architect total psa, lot number 73007fn00, was identified.
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