Quick Facts at a Glance
- Recall Date
- March 16, 2026
- Hazard Level
- HIGH
- Brand
- Beckman Coulter
- Geographic Scope
- 1 states
What to Do Now
Use this page like a recall checklist: verify the product first, then act on the official remedy.
Immediate steps
- 1Stop using the product until you confirm whether it is included in the recall.
- 2Compare the product label, model number, UPC, color, size, and purchase location against the identifiers below.
- 3Follow the official remedy from FDA - Medical Devices; save photos, receipts, labels, and correspondence before contacting the company.
- 4If the product could harm a child, older adult, pet, or patient, move it out of reach immediately.
Check these identifiers
- Brand
- Beckman Coulter
- Model numbers
- UDI-DI 15099590225872 Lots 538729, 538815, 538898, 539107, 539243
- Where affected
- ALL
Recall Timeline
Key dates and source checks for this recall record.
Recall announced
March 16, 2026
Reported by FDA DEVICE
April 29, 2026
RecallRadar source check
May 6, 2026
Consumer action
Use the official remedy and keep documentation.
Hazard Information
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.
What You Should Do
Patients and healthcare providers should stop using this device immediately. Follow the recall instructions provided by the manufacturer. Contact Beckman Coulter, Inc. or your healthcare provider for instructions. Notification method: Letter
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Full Description
Access Total T4 Calibrator, Catalog No. 33805. Reason: 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.. Classification: Class II. Quantity: 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.
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Safety Guide
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Read: How to Get Refunds and ReplacementsWant to Know First?
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