The customer reported discordant ck-mb results for a patient presenting with chest pain and shortness of breath.Patients whole blood sample was tested on triage cardiac lot w63734b, results were: ck-mb=7.5ng/ml, myo=168ng/ml, tni=<0.05ng/ml.Patient was sent to hospital.Patient was re-drawn at the hospital 3 hours after the triage result on the roche cobas, ck-mb = 2.9ng/ml triage ck-mb cut-off: 4.3ng/ml.Customer did not know the roche cobas cut-off.Customer did not know patient diagnosis but stated the patient was sent home.Customer confirmed patient was not treated on triage result.
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Customer returned their triage meterpro (sn: (b)(4).In-house testing of customers returned meter alongside in-house triage meters showed the returned meter is performing properly.No issues observed with customers returned meter.Customers complaint was not replicated with in-house testing of retain lot w63734b with normal donor population.All results were as expected and product performed properly.Manufacturing batch records for the lot were reviewed, the lot met release specifications.Based on the information available, there is no indication of a product deficiency and no corrective action is required.
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