MAUDE Adverse Event Report: SIEMENS HEALTHCARE DIAGNOSTICS INC. ADVIA CHEMISTRY XPT

Model Number	ADVIA CHEMISTRY XPT
Medical Device Problem Code	High Test Results (2457)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	11/23/2021
Type of Reportable Event	Malfunction
Event or Problem Description
A falsely elevated concentrated carbon dioxide (co2_c) result was obtained on a patient sample on an advia chemistry xpt instrument using lot 100.The discordant result was reported to the physician(s).The sample was repeated at an alternate facility.The customer did not provide the repeat result.There are no reports of patient intervention or adverse health consequences due to the discordant co2_c result.
Additional Manufacturer Narrative
A united states customer indicated that they observed an increase in elevated concentrated carbon dioxide (co2_c) results on an advia chemistry xpt instrument using lot 100.The customer is unable to indicate if quality control (qc) had recovered acceptably for co2_c.A siemens customer service engineer (cse) was dispatched to the customer site.On the day of the cse's visit, the cse reported that qc recovery for co2_c was acceptable for the entire day and there were no issues with co2_c patient results.The cause of the discordant co2_c results is unknown.The instrument is performing according to specifications.No further evaluation of this device is required.Mdrs 2432235-2021-00297, 2432235-2021-00298, 2432235-2021-00299, 2432235-2021-00300, 2432235-2021-00306, and 2432235-2021-00307 were also filed for this event.
Additional Manufacturer Narrative
Siemens filed initial mdr 2432235-2021-00301 on (b)(6) 2021.Additional information (b)(6) 2021): siemens further investigated the issue to determine the cause of the increase in elevated concentrated carbon dioxide (co2_c) results.Siemens subsequently visited the customer's site and the siemens customer service engineer (cse) found contamination inside the oil bath and build-up on the ring.The bath oil was drained, and the ring was wiped and cleaned of build-up and debris.After decontamination, fresh bath oil was poured into the bath to proper levels.All cuvette segments were replaced in the rings.Additionally, the peri pump tubing and cassettes were replaced as a precaution.The cse performed a shutdown, a wash and a cell blank.Ion selective electrode (ise) calibrations and quality controls (qc) were performed, and all passed.Based on the information provided, instrument contamination may have contributed to the elevated co2_c results.Additionally, the delay in repeating these samples could have contributed to the event as carbon dioxide concentrations will decrease in opened samples over time.Quality control was in-range.There were no issues with other patient samples, indicating that reagents were performing acceptably.The cause of the elevated co2 results is unknown.Corrected information ((b)(6) 2021): the brand name in section d1; the common device name and product code in section d2, the in section d4; the contact office - manufacturing site in section g1; the premarket identification pma/510(k) in section g4; the investigation findings in section h6; and usage of device in section h8 were corrected based on the additional information.The instrument is performing according to specifications.No further evaluation of this device is required.Mdrs 2432235-2021-00297_s1, 2432235-2021-00298_s1, 2432235-2021-00299_s1, 2432235-2021-00300_s1, 2432235-2021-00306_s1, and 2432235-2021-00307_s1 were also filed for this event.

• Brand Name: ADVIA CHEMISTRY XPT
• Common Device Name: ADVIA CHEMISTRY XPT
• Manufacturer (Section D): SIEMENS HEALTHCARE DIAGNOSTICS INC.; 511 benedict ave.; tarrytown NY 10591
• Manufacturer (Section G): JEOL LTD; 3-1-2 musashino akishima; registration #: 3003637681; tokyo, 196-8 558; JA 196-8558
• Manufacturer Contact: christina lam ; 511 benedict ave.; tarrytown, NY 10591 ; 9142550090
• MDR Report Key: 13056205
• Report Number: 2432235-2021-00301
• Device Sequence Number: 19811342
• Product Code: JJE
• UDI-Device Identifier: 00630414553177
• UDI-Public: 00630414553177
• Combination Product (Y/N): N
• Initial Reporter State: NY
• Initial Reporter Country: US
• PMA/510(K) Number: K990346
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional,User Facility
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 01/14/2022
• 2 Devices were Involved in the Event: 1 2

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Expiration Date: 10/31/2022
• Device Model Number: ADVIA CHEMISTRY XPT
• Device Catalogue Number: 10723034
• Device Lot Number: 100
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 12/12/2021
• Supplement Date Received by Manufacturer: 12/30/2021
• Initial Report FDA Received Date: 12/21/2021
• Supplement Report FDA Received Date: 01/14/2022
• Was Device Evaluated by Manufacturer? (Y/N): No
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Reuse
• Patient Sequence Number: 1
• Patient Age: 72 YR
• Patient Sex: Male