A product recall letter was issued to all architect customers who have received the architect ict module, list number 09d28-03, lot number 180326 (180326301 through 180326399).The letter informs the customer of the issue regarding higher than expected serum or plasma chloride results for quality control and patient samples.The letter instructs the customer to discontinue use of the suspect lot and destroy any remaining inventory.The cause of the upward shift has been traced to an omitted process step during the manufacture of the chloride electrode element of the ict module.
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The customer observed multiple falsely elevated chloride (cl) results and anion gap out of range while using the architect c8000 analyzer ict module.The following data was provided for one patient.The customer uses chloride normal range 98 to 107 mmol/l.Per the ict diluent product package insert, anion gap values are calculated as sodium (na) minus the sum of carbon dioxide (co2) and chloride (cl).Patient 1 initial 144 mmol/l, repeat using another analyzer 106 mmol/l, repeat using the same analyzer after cleaning 113 mmol/l.Patient 2 (sid (b)(6)) initial 114 mmol/l, repeat using another analyzer 106 mmol/l.No impact to patient management was reported.
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