FDA Enforcement Class II Ongoing

Access Total T4 Calibrator, Catalog No. 33805

Recall: Z-1922-2026 · Reported April 29, 2026

Enforcement

Recall Number
Z-1922-2026
Event ID
98591
Classification
Class II
Status
Ongoing
Product Type
Devices
Firm
Beckman Coulter, Inc.
Voluntary / Mandated
Voluntary: Firm initiated
Initial Notification
Letter
Report Date
April 29, 2026
Initiation Date
March 16, 2026
Classification Date
April 22, 2026
Address
1000 Lake Hazeltine Dr, N/A, Chaska, MN, 55318-1037, United States

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.

Code Info

UDI-DI 15099590225872 Lots 538729, 538815, 538898, 539107, 539243

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.

Quantity

2068 US, 2830 OUS