Beckman Coulter Access Total T4 Calibrator Recall, Class II
Summary
Beckman Coulter, Inc. has initiated a Class II medical device recall for Access Total T4 Calibrator, Catalog No. 33805 (UDI-DI 15099590225872), covering lots 538729, 538815, 538898, 539107, and 539243. The firm determined that these lots exhibit a negative bias on DxI 600/800 instruments with slopes outside product specifications, potentially producing falsely low patient results. The recall affects 2,068 units in US commerce and 2,830 units outside the US, distributed to healthcare facilities and laboratories in approximately 70 countries worldwide.
“A false low patient result could cause a patient to undergo unnecessary additional diagnostic testing.”
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What changed
Beckman Coulter issued a Class II recall for Access Total T4 Calibrator (PN 33805) across five specific lots after internal testing identified slopes outside product specifications on DxI 600/800 instruments, creating a risk of falsely low patient results. FDA classified this as a Class II recall and determined the cause to be nonconforming material or component.
Laboratories and healthcare facilities using Beckman Coulter DxI 600/800 instruments with these calibrator lots should be aware of the potential for inaccurate thyroid hormone test results. Falsely low T4 results could lead to patients undergoing unnecessary diagnostic testing, receiving treatment for disorders not present, experiencing delayed treatment for hyperthyroidism, or receiving incorrect thyroid hormone supplementation dosing during pregnancy. Facilities should await further instructions from Beckman Coulter (contact: Ian Pilcher, 952-448-4848) as the corrective action remains pending.
Archived snapshot
Apr 24, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Class 2 Device Recall Access Total T4 Calibrator
- Databases
| 510(k) | DeNovo | Registration & Listing | Adverse Events | Recalls | PMA | HDE | Classification | Standards |
| CFR Title 21 | Radiation-Emitting Products | X-Ray Assembler | Medsun Reports | CLIA | TPLC | |
| New Search | ) |
| | Class 2 Device Recall Access Total T4 Calibrator | |
| Date Initiated by Firm | March 16, 2026 |
|---|---|
| Date Posted | April 22, 2026 |
| Recall Status | Open , Classified |
| Recall Number | Z-1922-2026 |
| Recall Event ID | 98591 |
| 510(K)Number | K023369 |
| Product Classification | Enzyme immunoassay, non-radiolabeled, total thyroxine - Product Code KLI |
| Product | Access Total T4 Calibrator, Catalog No. 33805 |
| Code Information | UDI-DI 15099590225872 |
| Lots 538729, 538815, 538898, 539107, 539243 | |
| FEI Number | 2122870 |
| Recalling Firm/ | |
| Manufacturer | Beckman Coulter, Inc. |
1000 Lake Hazeltine Dr
Chaska MN 55318-1037 |
| For Additional Information Contact | Ian Pilcher
952-448-4848 |
| Manufacturer Reason
for Recall | Beckman Coulter has identified that Access Total T4 Calibrator lots (PN 33805) exhibit a negative bias on DxI 600/800 instruments, with slopes outside product specifications. A false low patient result could cause a patient to undergo unnecessary additional diagnostic testing. A patient may be treated for a disorder not present or receive delayed treatment for hyperthyroidism. For a pregnant patient being monitored for thyroid hormone supplementation, incorrect treatment or dose may be used. A delayed patient results could cause repeat blood draw with associated complications. |
| FDA Determined
Cause | Nonconforming Material/Component |
| Action | Pending |
| Quantity in Commerce | 2068 US, 2830 OUS |
| Distribution | Worldwide distribution - US Nationwide and the countries of Argentina, Austria, Bangladesh, Bolivia (Plurinational State of), Bosnia and Herzegovina, Brazil, Canada, China, C¿te d'Ivoire, Croatia, Czechia, Denmark, Egypt, El Salvador, Ethiopia, Georgia, Germany, Greece, Hong Kong, India, Indonesia, Ireland, Italy, Japan, Kazakhstan, Korea, Republic of, Kosovo, Lebanon, Libya, Malawi, Mexico, Myanmar, Nepal, Netherlands, New Zealand, Nigeria, North Macedonia, Pakistan, Panama, Peru, Philippines, Poland, Portugal, Puerto Rico, Qatar, Romania, Russian Federation, Saudi Arabia, Serbia, Singapore, Slovakia, Somalia, Spain, Switzerland, Taiwan, Province of China, Thailand, Turkey, United Arab Emirates, Uzbekistan, Viet Nam, Yemen. |
| Total Product Life Cycle | TPLC Device Report |
| 1 A record in this database is created when a firm initiates a correction or removal action. The record is updated if the FDA identifies a violation and classifies the action as a recall, and it is updated for a final time when the recall is terminated. Learn more about medical device recalls.
2 Per FDA policy, recall cause determinations are subject to modification up to the point of termination of the recall.
3 The manufacturer has initiated the recall and not all products have been corrected or removed. This record will be updated as the status changes. | |
| 510(K) Database | 510(K)s with Product Code = KLI |
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