medical MODERATE Updated 2026-04-29

Beckman Coulter, Inc. recalls Access Total T4 Calibrator, Catalog No. 33805

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Recalled Product

Access Total T4 Calibrator, Catalog No. 33805

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Hazard / Issue

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.

Issued by

FDA

Distribution: Nationwide (United States)
Lot/Code Info: UDI-DI 15099590225872 Lots 538729, 538815, 538898, 539107, 539243

✅ What Should You Do?

  1. 1Contact your healthcare provider immediately to discuss this recall.
  2. 2Stop using the device if it is safe to do so, and contact your provider.
  3. 3Follow the manufacturer's remedy instructions provided in the recall notice.
  4. 4Report device problems to FDA MedWatch or call 1-800-FDA-1088.

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