MAUDE Adverse Event Report: ABBOTT DIAGNOSTICS SCARBOROUGH, INC. BINAXNOW COVID-19 AG SELF TEST 2CT; CORONAVIRUS ANTIGEN DETECTION TEST SYSTEM.

Catalog Number	195-160
Medical Device Problem Code	Non Reproducible Results (4029)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	02/07/2026
Type of Reportable Event	Malfunction
Event or Problem Description
The consumer reported conflicting results with the binaxnow covid-19 ag self-test on (b)(6) 2026.The consumer reported that two tests were taken the same day; the first rest generated a negative result whereas the second test generated a positive result.The consumer indicated that they were symptomatic with sneezing, coughing, head and body aches at the time of the tests.No further tests were taken.No additional information was reported.
Additional Manufacturer Narrative
The investigation is ongoing, a supplement report will be sent upon completion.
Additional Manufacturer Narrative
Testing was performed at abbott diagnostics scarborough, inc.On retained kit lot 000905509a with internal positive quality control samples and negative quality control swabs.All test results were valid and performed as expected.Additionally, the manufacturing records and quality control release testing was reviewed for test kit part number 195-160 lot 000905509a and device part number 195-430wl lot 905509.The lot met the required release specifications.A review of the complaints reported as false negative and false positive patient results (confirmed and unconfirmed, conflicting results) related to kit lot 000905509a showed that the complaint rate is 0.00114 and 0.00341% respectively.Abbott diagnostics scarborough, inc.Was unable to determine the exact root cause of the reported issue.
Event or Problem Description
The consumer reported conflicting results with the binaxnow covid-19 ag self-test on (b)(6) 2026.The consumer reported that two tests were taken the same day; the first rest generated a negative result whereas the second test generated a positive result.The consumer indicated that they were symptomatic with sneezing, coughing, head and body aches at the time of the tests.No further tests were taken.No additional information was reported.

• Brand Name: BINAXNOW COVID-19 AG SELF TEST 2CT
• Common Device Name: CORONAVIRUS ANTIGEN DETECTION TEST SYSTEM.
• Manufacturer (Section D): ABBOTT DIAGNOSTICS SCARBOROUGH, INC.; 10 southgate road; scarborough ME 04074
• Manufacturer Contact: rachel blackwell ; 10 southgate road; scarborough, ME 04074 ; 6613888803
• MDR Report Key: 24314724
• Report Number: 1221359-2026-00018
• Device Sequence Number: 4941834
• Product Code: QYT
• UDI-Device Identifier: 00811877011408
• UDI-Public: 01008118770114081726061310000905509A
• Combination Product (Y/N): N
• Initial Reporter Country: US
• PMA/510(K) Number: K243518
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Consumer
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 03/17/2026

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: Lay User/Patient
• Device Expiration Date: 06/13/2026
• Device Catalogue Number: 195-160
• Device Lot Number: 000905509A
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 02/08/2026
• Supplement Date Received by Manufacturer: 03/17/2026
• Initial Report FDA Received Date: 02/11/2026
• Supplement Report FDA Received Date: 03/17/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 09/20/2024
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Patient Sex: Unknown