RecallRadar

FDA Device recall Z-1922-2026

Access Total T4 Calibrator, Catalog No. 33805

On 2026-04-29 the FDA classified a Class II recall of Access Total T4 Calibrator, Catalog No. 33805 by Beckman Coulter, citing 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 fa….

Read the official FDA Device notice

AgencyFDA Device
Recall numberZ-1922-2026
ClassificationClass II
Statusongoing
Initiated2026-03-16
Published2026-04-29
Last updated2026-09-13 11:58 UTC
CompanyBeckman Coulter
DistributionUS

Product

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.

Identifiers

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

Status history

No status changes recorded since RecallRadar first saw this recall on 2026-09-13 11:58 UTC. Current status: ongoing.

Source

Official record: https://api.fda.gov/device/enforcement.json?search=recall_number:%22Z-1922-2026%22

RecallRadar indexes public recall notices from the FDA, USDA FSIS, and CPSC. The official agency notice is the authoritative source. Always confirm details at the linked source before acting.