inforMED
MalfunctionKTN

MEDLINE

Received Apr 3, 2026 · Event occurred Mar 19, 2026

Report 1417592-2026-00289 · MDR key 24774443

Device

Generic name

Test,mono,cass,25 Test

Catalog number

MPH50025M

Lot number

225B11

Product problems

  • False Negative Result
  • Incorrect, Inadequate or Imprecise Result or Readings

Patient

Unknown

  • No Clinical Signs, Symptoms or Conditions

Narrative

Description of Event or Problem

ACCORDING TO THE FACILITY, ON (B)(6) 2026, "WE TESTED A PATIENT (SERUM) WHO TESTED POSITIVE (WEAK) IN THE CARDINAL KIT X2 AND COMPLETELY NEGATIVE X2 IN THE MEDLINE KIT." THE CARDINAL KIT WAS USED INSTEAD TO CONFIRM THE POSITIVE TEST. THE PATIENT IS DOING "FINE" AS THE CARDINAL KIT SHOWED THE POSITIVE RESULT, SO THE PATIENT RECEIVED APPROPRIATE TREATMENT.

Additional Manufacturer Narrative

ACCORDING TO THE FACILITY, ON (B)(6) 2026, "WE TESTED A PATIENT (SERUM) WHO TESTED POSITIVE (WEAK) IN THE CARDINAL KIT X2 AND COMPLETELY NEGATIVE X2 IN THE MEDLINE KIT." THE CARDINAL KIT WAS USED INSTEAD TO CONFIRM THE POSITIVE TEST. THE PATIENT IS DOING "FINE" AS THE CARDINAL KIT SHOWED THE POSITIVE RESULT, SO THE PATIENT RECEIVED APPROPRIATE TREATMENT. NO MEDICAL INTERVENTION, SERIOUS INJURY, OR FOLLOW-UP CARE HAS BEEN REPORTED. IT HAS BEEN DETERMINED THAT THE REPORTED EVENT COULD CAUSE OR CONTRIBUTE TO SERIOUS INJURY IF IT WERE TO OCCUR AGAIN. IN AN ABUNDANCE OF CAUTION, THIS MEDWATCH IS BEING FILED. IF ANY FURTHER RELEVANT INFORMATION IS IDENTIFIED OR OBTAINED, A SUPPLEMENTAL MEDWATCH WILL BE SUBMITTED.