Health Canada — Medical Devices · Canada · 2020-04-15 · Type III
As described by Health Canada — Medical Devices: Berhring Nephelometer SystemN Latex CDT Kit (Carb Deficient Transferrin) (2020-03-05)
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Reported risk: Siemens Healthcare Diagnostics has observed a negative bias for the carbohydrate-deficient transferrin (CDT) measurement when using the affected N latex CDT kit lots (49729, 49849, 49985 and 50084) in comparison to the HPLC method. All affected kit lots contain reagents from the same bulk. The issue has been internally observed during performed shelf-life monitoring after 15 months. CDT results in absolute concentrations may be influenced by the patient's transferrin levels and, therefore, results are reported as a ratio of CDT to total transferrin, called
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