| Model Number |
275005 |
| Medical Device Problem Code |
False Negative Result (1225)
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| Health Effect - Clinical Code |
No Clinical Signs, Symptoms or Conditions (4582)
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| Date of Event |
11/15/2022
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Type of Reportable Event
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Malfunction
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Additional Manufacturer Narrative
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A device evaluation and/or device history review is anticipated but is not complete.Upon completion, a supplemental report will be filed.
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Event or Problem Description
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It was reported that bd macro-vue¿ rpr card test false negatives occurred.The following information was provided by the initial reporter: negative result the particles are too coarse.
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Event or Problem Description
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It was reported that bd macro-vue¿ rpr card test false negatives occurred.The following information was provided by the initial reporter: negative result the particles are too coarse.
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Additional Manufacturer Narrative
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No further clarification provided but ar codes updated to false positive.H.6 investigation summary material 275005 batch 2013911.Satisfactory results when retention samples were tested for performance using three (3) sera panel numbers of each reactivity.Retention sample results: control lot (2276961) customer batch number (2013911) serum no.14: control and retention, showed reactive results at 1:1 to 1:4 and reactive minimal at 1:8.Serum no's; 17 and 20: control and retention showed reactive results at 1:1 and reactive minimal at 1:4.Serum no¿s.26, 37 and 40 : control and retention sample showed reactive minimal results at 1:1.Serum no's.1, 6 and 10; all lots showed negative results.Visual inspection was performed to retention samples and no discrepancy were found.Normal particle size was observed.Photo evaluation was performed; grainy can not be defined through the customer photo.Batch history records were reviewed with satisfactory results, no deviations were reported.In-process and qc testing were within specification.Complaint is unconfirmed based of retention sample test results and batch history record review and photo evaluation.Special attention should be provided to: antigen storage and use.Sample and room temperature during the test.Type of specimen used: collection and preparation.According of the ¿manual of test for syphilis¿ edition 9.0 the following ¿sources of error¿ had been identified for increase of reactivity or false reactivity for the rpr test.If the time of rotation is too long, test reactivity may be increased.If the card is excessively rotated and tilted (to and fro motions) by hand after removal from the rotator, a false reactive result may occur.If the serum is unevenly spread in the circle, the antigen and the antibody may not mix properly.A cross functional team continually monitors all product complaints for trends and determines if any additional actions are necessary beyond the current investigation process.H3 other text : see h.10.
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Search Alerts/Recalls
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