Quality Control results were not properly evaluated for QC failures.
Abbott GmBH & Co. KG
There is a potential to generate incorrect patient results for the following assays: Alkaline Phosphatase, Amylase, Creatine Kinase, and Gamma Glutamyl Transferase.
Abbott identified that samples tested for ARCHITECT STAT High Sensitive Troponin I and STAT High Sensitivity Troponin I assays (LN 3P25 and LN 2R98) may show interaction when processed directly after the ARCHITECT iGentamicin (LN 1P31) assay and patient results might be impacted.
An erroneous concentration value for hepatitis A virus was utilized during manufacture, leading to a decreased amount of antigen used for the impacted lots.
Abbott has identified potential performance issues for the Alinity ci -series Software version 2.6.2 and earlier.
Abbott has identified that Calibrator lot 08219BE00 is potentially impacted by an increase in Relative Light Units (RLUs) up to 94%. It has been confirmed that the increase in the calibrator RLU values may cause a decrease in the control values and patient results. Patient values generated using the impacted calibrator lot 08219BE00 may have changed interpretation from reactive to falsely non reactive. Results impacted may present as a (falsely) non reactive result that fall in the range between 0.50 to 0.99 S/CO.
Potential reliability issue with the Alinity ci series Level Sensor, Bulk Solution. The development of environmental stress on the bulk solution level sensor can cause cracks.
Abbott internal studies have determined that atmospheric Carbon Dioxide (CO2) can be absorbed into the Alinity c Carbon Dioxide reagent, resulting in the potential for incorrect results. Abbott was made aware of this issue from customer complaints. Internal testing demonstrated that the amount of CO2 absorbed is higher with increased reagent carousel rotation and when the volume of reagent in the cartridge is reduced. This phenomenon can be detected as a shift in QC. The shift is predictive in both direction and magnitude of the potential impact to patient results.
Potential reliability issue with the Alinity ci series Level Sensor, Bulk Solution. The development of environmental stress on the bulk solution level sensor can cause cracks.
Potential reliability issue with the Alinity ci series Level Sensor, Bulk Solution. The development of environmental stress on the bulk solution level sensor can cause cracks.
Abbott has identified an issue with all on market versions (v2.6.0 and v2.6.1) of Alinity ci series Software where incorrect results may occur after a system Stop due to the Alinity i re use of reaction vessels (RVs). This issue only occurs if the system is transitioned from Processing to Stopped to Idle.
All versions of the Alinity ci-series software may not detect an issue on the Alinity c Integrated Chip Technology (ICT) assays, sodium (Na+), potassium (K+), and chloride (Cl-).
Individual cuvettes within the Alinity c Cuvette Segment may become seated lower than the designed height. This may result in inadequate dispense into specific cuvettes due to the sample probe being unable to make efficient contact with the cuvette bottom.
Potential loose cable connections on the reagent cooler, which could result in temperature errors and eventual reagent cooler failure. Could cause burn and shock injuries to users and a delay in test results. Device design has mitigated this risk, but it is a possibility.
Potential performance issues in the Alinity-ci software version 2.5.1
The safety interlock covering the septum piercing probes within the bulk solution bottle holder may not deploy when a bulk solution bottle is removed from the Alinity ci series and Alinity s System.
The safety interlock covering the septum piercing probes within the bulk solution bottle holder may not deploy when a bulk solution bottle is removed from the Alinity ci series and Alinity s System.
Abbott has identified an issue with the Alinity i Gear Pump Assembly (part number A 30108552 01) resulting in foaming/bubbling out of the bottle reservoir for Concentrated Wash Buffer and an unexpected amount of dried residue of buffer. The foaming/bubbling is a result of an improper calibration of the pump s operating speed.
Falsely elevated results may be obtained when using the ARCHITECT DHEA-S assay with samples from infants up to 60 days old.