# FDA recall Z-1922-2026

> **Beckman Coulter, Inc.** · Class II · device recall initiated 2026-03-16.

## Product

Access Total T4 Calibrator, Catalog No. 33805

## 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.

## 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.

## Key facts

- **Recall number:** Z-1922-2026
- **Recalling firm:** Beckman Coulter, Inc.
- **Classification:** Class II
- **Product type:** device
- **Status:** Ongoing
- **Initiation date:** 2026-03-16
- **Report date:** 2026-04-29

- **Voluntary/Mandated:** Voluntary: Firm initiated
- **Location:** Chaska, MN, United States

## Primary source

FDA Enforcement Reports: https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-1922-2026

## Citation

> AI Analytics. FDA recall Z-1922-2026. Retrieved 2026-07-27 from https://api.ai-analytics.org/recall/Z-1922-2026. Source: US FDA. Licensed CC0.

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