Home/Recalls/FDA-Z-1922-2026
FDA DevicesClass II

Access Total T4 Calibrator, Catalog No. 33805

Published: April 29, 2026Recall ID: Z-1922-2026Category: devicesCountry: US

Reason for Recall / Hazard

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.

Product Description & Identification

Access Total T4 Calibrator, Catalog No. 33805

Additional Source Details

FieldValue
CityChaska
StateMN
Event id98591
Address 11000 Lake Hazeltine Dr
Address 2N/A
Code infoUDI-DI 15099590225872 Lots 538729, 538815, 538898, 539107, 539243
Postal code55318-1037
Report date20260429
Product typeDevices
Product quantity2068 US, 2830 OUS
Reason for recallBeckman 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.
Voluntary mandatedVoluntary: Firm initiated
Recall initiation date20260316
Initial firm notificationLetter
Center classification date20260422

Overview

  • Recalling FirmBeckman Coulter, Inc.
  • StatusOngoing
  • Risk LevelClass II
  • DistributionWorldwide 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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