On (b)(6) 2017, the patient was tested for pregnancy prior to performance of an x-ray.A urine sample was collected and a fisher - sure-vue hcg serum/urine test produced a negative hcg result.The x-ray was subsequently performed.The customer later discovered that product from this expired lot was mixed with the current lot in use by the facility and is unsure of the lot number of the fisher - sure-vue hcg serum/urine test used for this patient.Although no confirmatory testing was conducted, the customer believes the result may be false due to the possibility that the test used may have been expired.Although requested, no additional information including the patient outcome was provided.This event is being conservatively reported as the customer believes the use of expired product may have produced a false hcg result.
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