Siemens healthcare diagnostics has investigated the provided information to determine the cause of the discordant, low heparin patient sample result on the bcs xp analyzer.No product non-conformance could be identified and a possible cause of the event may be sample specific or related to sample handling.Siemens requested a backup file and clarification of the type of heparin administered, but the customer declined to provide further information and stated that they have had no further issues with other samples.The instrument and reagent are performing according to specifications.No further evaluation of this device is required.
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A discordant, low heparin patient result (0.02 iu/ml) using innovance heparin kit lot 47758 was generated on the bcs xp analyzer.This patient result was not reported to the physician.The same patient sample was remixed and recentrifuged on the same day and run on the same bcs xp analyzer.A higher heparin patient result of 0.44 iu/ml (repeat result 1) was generated, but not reported to the physician.The same sample was repeated again on the same bcs xp analyzer and a heparin patient result of 0.45 iu/ml (repeat result 2) was generated and reported to the physician.The repeat heparin results matched the clinical expectation of the patient.Quality control values were within range before testing.There was no known impact or adverse health consequence to the patient due to the low innovance heparin result as the result was not reported.
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