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Lower risk Medical device recall · FDA · Published July 30, 2020

Randox Ammonia Reagents Recall: Positive Bias in Patient Samples

Randox recalls AM1015 Ammonia reagents due to potential positive bias in patient samples. This may lead to inaccurate ammonia levels in blood tests. Affected units include specific lot numbers.

🇺🇸 FDA recall #Z-2965-2020Medical deviceRandox ›
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Recalling firmRANDOX LABORATORIES, LTD.34 Diamond Rd · Crumlin Colorado Antrim, United Kingdom
✎ GovInfoNow plain-language explainer

What happened, in plain English

Randox is recalling its AM1015 Ammonia reagents because they can show up to 140 mol/l higher ammonia levels in patient samples than they should. This could lead to incorrect blood test results, which might affect diagnosis and treatment decisions. Read more at govinfonow.com/recall/64591-randox-ammonia-reagents-recall-positive-bias-in-patient-samples.

Source Summary by GovInfoNow · govinfonow.com/recall/64591-randox-ammonia-reagents-recall-positive-bias-in-patient-samples · Updated August 19, 2026 · FDA enforcement record: FDA #Z-2965-2020

Cite this page

“Randox Ammonia Reagents Recall: Positive Bias in Patient Samples.” GovInfoNow, updated August 19, 2026. https://govinfonow.com/recall/64591-randox-ammonia-reagents-recall-positive-bias-in-patient-samples. Based on FDA recall #Z-2965-2020 (https://api.fda.gov/device/enforcement.json?search=recall_number:%22Z-2965-2020%22&limit=1).

Why it’s dangerous

The reagents can produce a positive bias of up to 140 mol/l in patient samples. This means test results might show higher ammonia levels than actually present, potentially leading to incorrect medical decisions.

Who’s affected

Patients using Randox AM1015 Ammonia reagents for blood tests may be affected. Those with specific lot numbers (517541) are most at risk.

How to tell if you have this one

Check for the lot number 517541 on the reagent packaging. The product is sold under the catalog number AM1015 and GTIN 05022273200256.

  • Brand
    Randox
  • Category
    Medical device
FDA recall event · 2 products

All 2 products in this recall

FDA lists each product line separately under one recall event. Check your product description, lot or code numbers against each row. Every row shares the hazard and remedy on this page.

  • Classification
    Class II
  • Status
    Terminated
  • Distribution
    US Distribution to states of: VA, UT, WV and country of : Canada
Recall numberProduct, codes & lots
Z-2965-2020AM1015 Randox Ammonia (NH3), Enzymatic UV Method For the quantitative in vitro determination of Ammonia in plasma; Catalogue Number: AM1015 GTIN: 05022273200256 Lot #: 517541 batch 517541
Z-2966-2020AM1054 Randox Ammonia (NH3), Enzymatic UV Method For the quantitative in vitro determination of Ammonia in plasma; Catalogue Number: AM1054 GTIN: 05055273200263 Lot #: 512103 batch 512103
Based on the official FDA remedy

What to do — step by step

  1. Check Reagent Lot Number

    Look for the lot number 517541 on the reagent packaging to confirm if it is affected.

Where it went and when

Where it was distributed

Distributed in 3 states, and outside the U.S.

Alaska: not listedAKMaine: not listedMEVermont: not listedVTNew Hampshire: not listedNHWashington: not listedWAIdaho: not listedIDMontana: not listedMTNorth Dakota: not listedNDMinnesota: not listedMNIllinois: not listedILWisconsin: not listedWIMichigan: not listedMINew York: not listedNYRhode Island: not listedRIMassachusetts: not listedMAOregon: not listedORNevada: not listedNVWyoming: not listedWYSouth Dakota: not listedSDIowa: not listedIAIndiana: not listedINOhio: not listedOHPennsylvania: not listedPANew Jersey: not listedNJConnecticut: not listedCTCalifornia: not listedCAUtah: yesUTColorado: not listedCONebraska: not listedNEMissouri: not listedMOKentucky: not listedKYWest Virginia: yesWVVirginia: yesVAMaryland: not listedMDDelaware: not listedDEArizona: not listedAZNew Mexico: not listedNMKansas: not listedKSArkansas: not listedARTennessee: not listedTNNorth Carolina: not listedNCSouth Carolina: not listedSCDistrict of Columbia: not listedDCOklahoma: not listedOKLouisiana: not listedLAMississippi: not listedMSAlabama: not listedALGeorgia: not listedGAHawaii: not listedHITexas: not listedTXFlorida: not listedFL

FDA distribution: “US Distribution to states of: VA, UT, WV and country of : Canada” States read from FDA’s own wording; “not listed” means the notice does not name it.

States: Utah, Virginia, West Virginia.

Recall timeline

FDA terminated this recall 6 months after the firm started it.

1. Firm started the recall: Jul 30, 202012. FDA classified it Class II: Sep 14, 202023. Published in FDA’s Enforcement Report: Sep 23, 202034. FDA terminated the recall: Feb 3, 2021420202021
  1. Firm started the recall
  2. FDA classified it Class II
  3. Published in FDA’s Enforcement Report
  4. FDA terminated the recall

Dates from the agency record only; steps without a date are left out.

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Where this comes from

The facts (hazard, remedy, dates, manufacturer) are pulled from the official FDA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.

  • Official source: FDA Recall #Z-2965-2020 (July 30, 2020) — FDA publishes no per-recall page; this is the official machine-readable enforcement record. Search FDA recalls for Z-2965-2020 to see it in context.
  • Plain-language summary written by qwen3:4b on August 19, 2026, from the official record above. Not reviewed by a person — if it conflicts with the FDA notice, the notice is correct. Report an error on this page.
  • GovInfoNow is an independent service and is not a government agency. We republish official FDA recall data; we don’t issue, amend or administer recalls.
GovInfoNow is an independent guide. We are not FDA or any government agency. Always confirm details with the official recall.Data: CPSC · FDA · NHTSA · USDA