Class II U.S. Food and Drug Administration

Beckman Coulter, Inc. Access Total T4 Calibrator recall: Beckman Coulter has identified that Access Total T4 Calibrator lots (PN

Recall published 6 months ago

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.

The hazard: Device safety concern

A device recall was filed for this product. For anything implanted or relied on daily, the clinician comes before the paperwork.

What the notice says: 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.

Why it matters: The FDA recorded an enforcement action against this device. Most device recalls are corrections rather than removals, so the device often stays in use while the manufacturer issues a fix.

Recall details

Recall number
Z-1922-2026
Published
April 29, 2026
Risk level
Class II
Status
Ongoing
Issued by
U.S. Food and Drug Administration
Brand
Beckman Coulter, Inc.
Product type
Medical devices
Units affected
2068 US, 2830 OUS
Distribution
Nationwide
Made in
United States
Lot / code info
UDI-DI 15099590225872 Lots 538729, 538815, 538898, 539107, 539243
UPC codes
15099590225872

Products covered by this recall

Access Total T4 Calibrator, Catalog No. 33805

Check your product

The notice names 8 codes you can read straight off the package. Type the one printed on yours and the list below narrows to it.

UPC / barcode

Read the twelve digits under the barcode on the package.

  • 15099590225872

Lot or batch code

Usually ink-stamped near the seam, the cap or the bottom of the pack.

  • 538729
  • 538815
  • 538898
  • 539107
  • 539243 — 2068 US
  • 2830 OUS

Model or item number

On the rating label, the box or the instruction sheet.

  • 538815

Codes are lifted verbatim from the FDA — Device enforcement notice. A code that is missing here may still be covered — the official notice is the complete list.

What to do about Device

Beckman Coulter, Inc. — A device recall was filed for this product. For anything implanted or relied on daily, the clinician comes before the paperwork.

  1. Match the model, catalogue, lot and serial numbers on your device against the identifiers on this page.
  2. If the device is implanted or you depend on it daily, speak to your clinician before changing how you use it.
  3. Ask the supplier or clinic that provided it what the remedy is in your case.
  4. If you are a facility, quarantine affected stock and log the correction.

Claiming on a recalled device

Device recalls are tracked by serial and lot number, so your claim moves faster if you lead with those.

  • Have the model, catalogue, lot and serial numbers ready before you call — they are on the device label or its box.
  • Ask explicitly whether your unit is in the affected range; many recalls cover only part of a model line.
  • If you need the device daily, ask what interim arrangement they offer while the remedy is carried out.
  • Log the date, the name and the reference number of every call. Device recalls can run for months.

Company contact: Beckman Coulter, Inc. — 1000 Lake Hazeltine Dr, Chaska, MN, 55318-1037

The official notice

This page summarises a notice published by U.S. Food and Drug Administration. The agency notice is the authoritative version — read it before you act, and treat it as the final word if anything here looks different.

Open the FDA — Device enforcement record U.S. Food and Drug Administration recalls

Questions people ask about this recall

Why was Beckman Coulter, Inc. medical devices recalled?

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. Beckman Coulter…

How do I know if I have the recalled product?

Match the codes printed on your package against the notice: UPC 15099590225872; lot code 538729, 538815, 538898; model number 538815. If the code on your package is not on that list, your unit is outside the recall.

What should I do with it right now?

Match the model, catalogue, lot and serial numbers on your device against the identifiers on this page.

Can I get my money back?

Have the model, catalogue, lot and serial numbers ready before you call — they are on the device label or its box.

Where was the recalled product sold?

It was distributed nationwide.

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