| Catalog Number |
05171407190 |
| Medical Device Problem Code |
High Test Results (2457)
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| Health Effect - Clinical Code |
No Clinical Signs, Symptoms or Conditions (4582)
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| Date of Event |
03/04/2022
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Type of Reportable Event
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Malfunction
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Additional Manufacturer Narrative
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Na.
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Event or Problem Description
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The initial reporter stated that 4 samples collected from the same patient and tested with trigl triglycerides on a cobas 8000 c (701) module.The specific date the event occurred was requested, but not provided.The customer stated that triglyceride measurements of the 4 samples yielded high results of > 1000 mg/dl.The measurements were not considered plausible by the customer as they did not agree with other diagnostic findings of the patient.The results from three of the four samples were reported outside of the laboratory with a comment stating the results were not plausible.The serial number of the c 701 analyzer is 17j2-08.
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Additional Manufacturer Narrative
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A sample from the patient was provided for investigation.The sample was analyzed with the roche trigl triglycerides reagent (trigl) and with a special laboratory batch of the triglycerides reagent (trigla) which does not contain any lipoprotein lipase and thus only records the content of free glycerol in the sample.The difference between the two measurements, trigl = 28.0 mmol/l and trigla = 26.2 mmol/l, results in a difference of 1.8 mmol/l triglycerides.This corresponds to the true level of triacylglycerides in the sample.The measured value of free glycerol in the sample, 26.2 mmol/l, confirms the finding of pseudo hypertriglyceridemia due to the lack of glycerol kinase activity in the patient sample.The investigation concludes the patient suffers from pseudo hypertriglyceridemia due to a lack of glycerol kinase.There is no interference through drugs.The issue is sample-specific.
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Search Alerts/Recalls
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