IMMULITE 2000 Thyroglobulin (US)- For in vitro diagnostic use with the IMMULITE 2000 Systems Ana...

FDA Device Recall #Z-0949-2023 — Class II — December 7, 2022

Recall Summary

Recall Number Z-0949-2023
Classification Class II — Moderate risk
Date Initiated December 7, 2022
Status Ongoing
Voluntary Voluntary: Firm initiated

Recalling Firm

Firm Siemens Healthcare Diagnostics, Inc.
Location Tarrytown, NY
Product Type Devices
Quantity 717 kits

Product Description

IMMULITE 2000 Thyroglobulin (US)- For in vitro diagnostic use with the IMMULITE 2000 Systems Analyzers (IMMULITE 2000/ IMMULITE 2000 XPi) for the quantitative measurement of thyroglobulin in serum or heparinized plasma, as an aid in monitoring patients who have undergone thyroidectomy. Catalog # L2KTY2(D) Siemens Material Number (SMN): 10381647

Reason for Recall

Potential for Functional Sensitivity to not meet Instructions For Use (IFU) claims with the kit lots; control level one may result outside of published ranges; when control results are in range, users may observe increased imprecision with low level patient samples

Distribution Pattern

Nationwide Foreign: Argentina¿¿¿¿¿¿ Australia¿¿¿¿¿¿ Austria¿¿¿¿¿¿¿¿ Bahrain¿¿¿¿¿¿¿¿ Bangladesh¿¿¿¿¿ Belgium¿¿¿¿¿¿¿¿ Bolivia¿¿¿¿¿¿¿¿ Bosnia¿Herzeg.¿ Brazil¿¿¿¿¿¿¿¿¿ Bulgaria¿¿¿¿¿¿¿ Canada¿¿¿¿¿¿¿¿¿ Chile¿¿¿¿¿¿¿¿¿¿ Colombia¿¿¿¿¿¿¿ Costa¿Rica¿¿¿¿¿ Croatia¿¿¿¿¿¿¿¿ Cyprus¿¿¿¿¿¿¿¿¿ Czech¿Republic¿ Dominican¿Rep.¿ Ecuador¿¿¿¿¿¿¿¿ Egypt¿¿¿¿¿¿¿¿¿¿ Estonia¿¿¿¿¿¿¿¿ Finland¿¿¿¿¿¿¿¿ France¿¿¿¿¿¿¿¿¿ Georgia¿¿¿¿¿¿¿¿ Germany¿¿¿¿¿¿¿¿ Greece¿¿¿¿¿¿¿¿¿ Honduras¿¿¿¿¿¿¿ Hong¿Kong¿¿¿¿¿¿ Hungary¿¿¿¿¿¿¿¿ India¿¿¿¿¿¿¿¿¿¿ Indonesia¿¿¿¿¿¿ Iran¿¿¿¿¿¿¿¿¿¿¿ Iraq¿¿¿¿¿¿¿¿¿¿¿ Ireland¿¿¿¿¿¿¿¿ Israel¿¿¿¿¿¿¿¿¿ Italy¿¿¿¿¿¿¿¿¿¿ Jordan¿¿¿¿¿¿¿¿¿ KA Kazakhstan¿¿¿¿¿ Kosovo¿¿¿¿¿¿¿¿¿ Kyrgyzstan¿¿¿¿¿ Latvia¿¿¿¿¿¿¿¿¿ Lithuania¿¿¿¿¿¿ Macedonia¿¿¿¿¿¿ Malaysia¿¿¿¿¿¿¿ Mexico¿¿¿¿¿¿¿¿¿ Morocco¿¿¿¿¿¿¿¿ Nepal¿¿¿¿¿¿¿¿¿¿ Netherlands¿¿¿¿ P.R.¿China¿¿¿¿¿ Pakistan¿¿¿¿¿¿¿ Panama¿¿¿¿¿¿¿¿¿ Paraguay¿¿¿¿¿¿¿ Peru¿¿¿¿¿¿¿¿¿¿¿ Philippines¿¿¿¿ Poland¿¿¿¿¿¿¿¿¿ Portugal¿¿¿¿¿¿¿ Republic¿Korea¿ Romania¿¿¿¿¿¿¿¿ Russian¿Fed.¿¿¿ Saudi¿Arabia¿¿¿ Serbia¿¿¿¿¿¿¿¿¿ Singapore¿¿¿¿¿¿ Slovakia¿¿¿¿¿¿¿ Slovenia¿¿¿¿¿¿¿ South¿Africa¿¿¿ Spain¿¿¿¿¿¿¿¿¿¿ Sweden¿¿¿¿¿¿¿¿¿ Switzerland¿¿¿¿ Taiwan¿¿¿¿¿¿¿¿¿ Trinidad,Tobago Tunisia¿¿¿¿¿¿¿¿ Turkey¿¿¿¿¿¿¿¿¿ Turkmenistan¿¿¿ U.A.E.¿¿¿¿¿¿¿¿¿ Ukraine¿¿¿¿¿¿¿¿ United¿Kingdom¿ Uruguay¿¿¿¿¿¿¿¿ Uzbekistan¿¿¿¿¿ Vietnam¿¿¿¿¿¿¿¿

Lot / Code Information

UDI: 00630414972084 Kit Lots: D431, D433, D434, D435, and D436

Other Recalls from Siemens Healthcare Diagnostics, Inc.

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Z-1980-2026 Class II Dimension Creatinine Flex reagent cartridge. Ma... Mar 18, 2026
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Z-1484-2026 Class II Atellica CH Urine Albumin (UAlb). Material Numb... Jan 20, 2026
Z-0491-2026 Class II IMMULITE 2000 Oak Mix Specific Allergen; Sieme... Oct 6, 2025
Z-0492-2026 Class II 3gAllergy Specific IgE Universal Kit; Kit Comp... Oct 6, 2025

Frequently Asked Questions

Contact your healthcare provider and the device manufacturer immediately. Check whether your specific model number and lot number are included in the recall scope. For external devices, stop using the affected product and arrange a replacement. For implanted devices, do not panic — removal is typically not required unless the risk assessment clearly indicates it. Your physician will guide you based on your individual clinical situation and the FDA's recommended actions. Report any adverse effects you may have experienced to FDA MedWatch at 1-800-FDA-1088.

Class I recalls indicate a reasonable probability of serious adverse health consequences or death from the defect. Class II recalls involve products that may cause temporary or medically reversible adverse health consequences, or where serious consequences are remote. Class III recalls cover products not likely to cause any adverse health consequences, typically involving technical regulatory violations. The classification guides urgency — Class I recalls require immediate action, while Class III may simply involve returning a product or acknowledging a labeling change. Always read the specific recall notice for recommended patient actions.

Report problems with medical devices to the FDA through MedWatch at 1-800-FDA-1088 or online at FDA.gov/safety/medwatch. Healthcare facilities are required by law to report device-related serious injuries and deaths. Patients and consumers can also report voluntarily. Include the device name, manufacturer, model number, and a description of the problem and any patient outcome. Reports from patients and clinicians help the FDA identify emerging safety signals and may trigger investigations that lead to recalls of dangerous devices.

What Should You Do?

Stop using this device if you are affected by this recall. Contact your healthcare provider and the manufacturer immediately for guidance. Report adverse events to FDA MedWatch.