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On (b)(6) 2023, abbott point of care was contacted by a customer regarding act kaolin cartridges that yielded a discrepant results of 850 & 955 on a 74 year male patient during a procedure.There was no additional information available at the time of this report.Return product is not available for investigation.Method date tested act (sec) i-stat on (b)(6) 2022 10:37 184, i-stat on (b)(6) 2022 11:23 150, i-stat on (b)(6) 2022 11:28 167, i-stat on (b)(6) 2022 11:39 850, i-stat on (b)(6) 2022 11:53 955, i-stat on (b)(6) 2022 12:10 173.Per i-stat system manual (art: 770715-00a), the i-stat kaolin activated clotting time (kaolinact) test is an in vitro diagnostic test that uses fresh, whole blood, and is used to monitor high-dose heparin anticoagulation frequently associated with cardiovascular surgery.At this time there is no reason to suspect a malfunction exists.The reporting decision was based on the limited information that suggests the product was not performing within the variability of the assay.The customer alleges a falsely depressed result of 167 seconds after dosing the patient with no increase.Following an extra bolus, the act went too high and resulted in 850 & 955 seconds.There were no details/times presented for heparin and limited patient information.It is suspected that the patient may be heparin resistant.An investigation is underway.
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