MAUDE Adverse Event Report: SIEMENS HEALTHCARE DIAGNOSTICS INC. DIMENSION®; DIMENSION® (LTNI) CARDIAC TROPONIN I FLEX® REAGENT CARTRIDGE,

Model Number	10444896
Medical Device Problem Code	High Test Results (2457)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	04/01/2022
Type of Reportable Event	Malfunction
Event or Problem Description
Four (4) discordant falsely elevated cardiac troponin-i (ltni) patient sample results were obtained on a dimension xpand with hm system.The discordant falsely elevated results were reported to the physician for two of the four samples.The physician questioned one of the patient sample results.One patient was sent to a hospital for a new sample to be drawn and processed.A lower result, considered correct, was obtained and reported.There are no known reports of patient intervention or adverse health consequences due to the discordant falsely elevated ltni patient result.There are no known reports of patient intervention or adverse health consequences to the patient sent to the alternate facility for testing.
Additional Manufacturer Narrative
A united states customer contacted the siemens healthcare diagnostics remote services center (rsc) regarding discordant falsely elevated cardiac troponin-i (ltni) patient sample results obtained on four (4) patient samples on a dimension xpand with hm system.Siemens is investigating the event.
Additional Manufacturer Narrative
Siemens healthcare diagnostics inc.Has investigated the event of discordant falsely elevated results with cardiac troponin i (ltni) on the dimension xpand w/lm system with lot ea2314.Siemens has confirmed that dimension cardiac troponin i (ltni) lot ea2314 shows a positive bias with lithium heparin plasma samples from individuals that are expected to be below the 99th percentile of 0.07 ng/ml [0.07 ug/l].Troponin values as high as 0.20 ng/ml [0.20 ug/l] have been observed with lithium heparin plasma that are expected to be within the 99th percentile.Serum samples collected from normal, healthy individuals whose results fall within the reference interval or below the 99th percentile of 0.07 ng/ml [0.07 ug/l] were not impacted by this issue.Urgent medical device correction, dc-22-02.A.Us dated may 18, 2022 and urgent field safety notice dc-22-0-02.A.Ous dated may-2022 was sent to all customers who had been shipped dimension cardiac troponin i (ltni) lot ea2314.Siemens recommended that customers use serum patient samples only when processing samples with ltni lot ea2314.The customer was instructed to discard ltni lot ea2314 if their laboratory is not able to use serum samples.Initial mdr 2517506-2022-00098 was filed on 27-apr-2022.

• Brand Name: DIMENSION®
• Common Device Name: DIMENSION® (LTNI) CARDIAC TROPONIN I FLEX® REAGENT CARTRIDGE,
• Manufacturer (Section D): SIEMENS HEALTHCARE DIAGNOSTICS INC.; 500 gbc drive; po box 6101; newark DE 19714 6101
• Manufacturer (Section G): SIEMENS HEALTHCARE DIAGNOSTICS INC.; 500 gbc drive; po box 6101; newark DE 19714 6101
• Manufacturer Contact: james morgera ; 500 gbc drive; po box 6101; newark, DE 19714-6101
• MDR Report Key: 14220193
• Report Number: 2517506-2022-00098
• Device Sequence Number: 14501806
• Product Code: MMI
• UDI-Device Identifier: 00842768013904
• UDI-Public: 00842768013904
• Combination Product (Y/N): N
• Initial Reporter State: TN
• Initial Reporter Country: US
• PMA/510(K) Number: K010313
• 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
• Remedial Action: Recall
• Type of Report: Initial,Followup
• Report Date (Section B): 05/25/2022

1 Device was Involved in the Event

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: 11/10/2022
• Device Model Number: 10444896
• Device Catalogue Number: RF521 SMN 10444896
• Device Lot Number: EA2314
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 04/13/2022
• Supplement Date Received by Manufacturer: 04/27/2022
• Initial Report FDA Received Date: 04/27/2022
• Supplement Report FDA Received Date: 05/25/2022
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 11/09/2021
• 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
• If action reported to FDA under 21 USC 360i(g), list FDA-assigned Recall Number or include a statement: 2517506-05/24/2022-002-C
• Patient Sequence Number: 1
• Patient Sex: Unknown