FDA Adverse Event Malfunction Summary report: N

DADE ACTIN FSL ACTIVATED PTT REAGENT

MDR report key: 23511209 · Received November 10, 2025

Report

Report Number
9610806-2025-00051
Event Type
Malfunction
Date Received
November 10, 2025
Date of Event
October 15, 2025
Report Date
November 10, 2025
Manufacturer
SIEMENS HEALTHCARE DIAGNOSTICS PRODUCTS GMBH
Product Code
GGW
UDI-DI
00842768003882
PMA / PMN Number
K863594
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
CT, US
Reporter Occupation
OTHER HEALTH CARE PROFESSIONAL
Health Professional
Yes

Narratives

Additional Manufacturer Narrative · 0

A UNITED STATES (US) CUSTOMER CONTACTED SIEMENS CUSTOMER CARE CENTER TO REPORT FALSELY ELEVATED APTT (ACTIVATED PARTIAL THROMBOPLASTIN TIME) SEC RESULTS THAT WERE OBTAINED ON ONE PATIENT SAMPLE ON THE CS-2500 INSTRUMENT. THE DOCUMENTS PROVIDED DO NOT SHOW ANY ANALYZER, SOFTWARE, REAGENT OR ASSAY ISSUE. ALL QC RESULTS WERE FOUND WITHIN THEIR RANGES ON THE DAY THE PATIENT SAMPLE WAS MEASURED. THE RESULT DIFFERENCE WAS OBVIOUS AFTER RE-CENTRIFUGATION, SO MOST LIKELY REFER TO SAMPLE SPECIFIC BEHAVIOR. SYSTEM WORKS AS SPECIFIED. CUSTOMER IS OPERATIONAL. THE INSTRUMENT IS PERFORMING ACCORDING TO SPECIFICATIONS. NO FURTHER EVALUATION OF THIS DEVICE IS REQUIRED.

Description of Event or Problem · 0

THE CUSTOMER REPORTED THE OBSERVATION OF A FALSELY ELEVATED APTT (ACTIVATED PARTIAL THROMBOPLASTIN TIME) RESULTS OBTAINED ON ONE PATIENT SAMPLE MEASURED WITH DADE ACTIN FSL ACTIVATED PTT REAGENT ON A SYSMEX CS-2500 SYSTEM COMPARED TO THE REPEATED RESULTS. THE ERRONEOUS RESULT WAS INITIALLY REPORTED TO THE PHYSICIAN, BUT CORRECTED BY THE LOWER REPEATED RESULT. THERE ARE NO KNOWN REPORTS OF PATIENT INTERVENTION OR ADVERSE HEALTH CONSEQUENCES DUE TO THESE DISCORDANT RESULTS.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1928226 DADE ACTIN FSL ACTIVATED PTT REAGENT TEST, TIME, PARTIAL THROMBOPLASTIN GGW SIEMENS HEALTHCARE DIAGNOSTICS PRODUCTS GMBH 562798 00842768003882

Patients

Seq Age Sex Outcome Treatment
1 71 YR Male