MAUDE Adverse Event Report: SIEMENS HEALTHCARE DIAGNOSTICS, INC. ATELLICA CH CALCIUM (CA); CALCIUM (CA) ASSAY

Model Number N/A

Device Problem Low Test Results (2458)

Patient Problem No Clinical Signs, Symptoms or Conditions (4582)

Event Date 02/28/2023

Event Type  malfunction  

Event Description

The customer observed a depressed erroneous calcium (ca) result on a patient sample on atellica ch 930 analyzer.The discordant result was reported to the physician(s).The sample was repeated on an alternate atellica ch 930 analyzer.The repeat result was higher than the discordant result.The repeat result was reported, as the correct result, to the physician(s).There are no known reports of patient intervention or adverse health consequences due to the discordant ca result.

Manufacturer Narrative

A customer from the united states observed a depressed erroneous calcium (ca) result on a patient sample on atellica ch 930 analyzer.The sample was repeated on an alternate atellica ch 930 analyzer.The repeat result was higher than the discordant result.The repeat result was reported, as the correct result, to the physician(s).Siemens reviewed available information to evaluate for a potential product problem.Repeat of the same sample yielded expected result.Therefore, return of the patient sample is not warranted for further investigation.Biorad mulitqual lot: 56690 peer data: l1 peer x(sd) = 5.8 (0.21) 2sd range 5.4-6.2 3sd range 5.2-6.4 mg/dl.L3 peer x(sd) = 13.6 (0.34) 2sd range 12.9-14.3 3sd range 12.6-14.6 mg/dl.A lot calibration with calibration id 3918 was performed on feb 22, 2023 at 05:09 for atellica ch ca lot: 221732 pack sequence 0,5029.Qc recovery was within acceptable limits; l1 = 5.9-6.0, l3 = 13.8-13.9 mg/dl.A pack calibration with calibration id 3940 was performed on feb 27, 2023 at 05:11 for atellica ch ca lot: 221732 pack sequence 1,5029.Qc recovery was within acceptable limits; l1 = 5.5-5.8, l3 = 13.3-13.8 mg/dl.On feb 27, 2023 at 10:54, pack sequence 1,5029 was consumed and the pack calibration expired.The system moved to a new pack for atellica ch ca lot: 221732 with sequence 0,5054.When this pack was placed into use, the system uses the lot calibration with calibration id 3918.Qc recovery was elevated and out of range; l1 = 6.5-6.7 l3 = 14.7-14.8 mg/dl.On feb 28, 2023 at 08:54, the operator performed a lot calibration with calibration id 3949 for atellica ch ca lot: 221732 sequence 0,5054.Qc recovery was within acceptable limits: l1 = 5.9, l3 = 13.1 mg/dl.Siemens review of the calibration indicates the absorbance was higher than previous calibration absorbances for atellica ch ca lot: 221732.On feb 28, 2023 at 15:05, pack sequence 0,5054 was consumed and the system moved to pack sequence 1,5054 using the same lot calibration with calibration id 3949.Qc recovery shifted low and out of acceptable range; l1 = 5.0 l3 = 12.3 mg/dl.On mar 01, 2023 at 07:17, a lot calibration with calibration id 3957 was performed on pack sequence 1,5054.Qc was within acceptable limits; l1 = 5.8, l3 = 13.9 mg/dl.Qc recovery has been within acceptable limits since this calibration with subsequent reagent packs.Siemens concludes the probable cause of discordant atellica ch ca results for multiple samples is most likely due to an isolated incident of a compromised or contaminated well 0 with pack sequence 5054.The data suggests atellica ch ca lot: 221732 pack sequence 0,5054 was compromised or contaminated and the issue was calibrated into the calibration of the lot calibration with calibration id 3949.Well 2 of the same pack sequence 1,5054 performed acceptably after the pack was recalibrated to set the calibration back to be consistent with previous calibrations with reagent lot: 221732.All other pack wells of atellica ch ca lot: 221732 perform as expected suggesting this issue is isolated to pack well 0,5054.The potential of leakage of well 0 of pack sequence 5054 is unknown and cannot be determined.Siemens has reviewed the information provided and concludes that it is not a reagent lot or method issue.No sample was required to be sent to siemens for further investigation.There is no evidence of a potential product issue.The instrument is fully operational.

• Brand Name: ATELLICA CH CALCIUM (CA)
• Type of Device: CALCIUM (CA) ASSAY
• Manufacturer (Section D): SIEMENS HEALTHCARE DIAGNOSTICS, INC.; 511 benedict avenue; tarrytown NY 10591 5097
• Manufacturer (Section G): RANDOX LABORATORIES LTD.; registration # 8020890; 55 diamond road; crumlin co. antrim, BT29 4QY; UK BT29 4QY
• Manufacturer Contact: louise mclaughlin ; 333 coney street; east walpole, MA 02032 ; 7818564812
• MDR Report Key: 16629268
• MDR Text Key: 312503516
• Report Number: 1219913-2023-00061
• Device Sequence Number: 1
• Product Code: CIC
• UDI-Device Identifier: 00630414595672
• UDI-Public: 00630414595672
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: K991576
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Health Professional,User Facility
• Reporter Occupation: Other Health Care Professional
• Type of Report: Initial
• Report Date: 03/28/2023

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 03/28/2023
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Expiration Date: 08/01/2023
• Device Model Number: N/A
• Device Catalogue Number: 11097595
• Device Lot Number: 221732
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Date Manufacturer Received: 03/03/2023
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Date Device Manufactured: 06/01/2022
• Is the Device Single Use?: No
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1