| Catalog Number |
04628918190 |
| Medical Device Problem Code |
Non Reproducible Results (4029)
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| Health Effect - Clinical Code |
No Clinical Signs, Symptoms or Conditions (4582)
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| Date of Event |
09/21/2023
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Type of Reportable Event
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Malfunction
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Event or Problem Description
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The initial reporter complained of discrepant results for 1 patient sample tested for crphs on a cobas 6000 c501 module.The initial result was 589.14 mg/l accompanied by an invalidating data flag.The sample was repeated with a 1:20 dilution and the result was 281.10 mg/l.The sample was then repeated using "ifi" technology and the result was 137.4 mg/l.This result was believed to be correct.On (b)(6) 2023 the sample was repeated and the result was 580.97 mg/l accompanied by an invalidating data flag.The sample was repeated again with a 1:20 dilution and the result was 275.35 mg/l.Additional results were provided from 28-sep-2023: the result was 596.94 mg/l accompanied by an invalidating data flag.The repeat result in decreased mode was 272.58 mg/l.
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Additional Manufacturer Narrative
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The c501 module serial number was (b)(6).
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Additional Manufacturer Narrative
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Calibration and qc were acceptable.No issues were identified during a review of the alarm trace data.The sample concentration for the patient was relatively high.Product labeling states: "determine samples having higher concentrations via the rerun function.Dilution of samples via the rerun function is a 1:15 dilution." the customer used a 1:20 dilution.The sample was repeated using "ifi" technology.Different analytical methods may produce different results.The investigation did not identify a product problem.The event was due to a sample handling issue (non-validated dilution).
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Search Alerts/Recalls
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