Randox Laboratories Ltd. 55 Diamond Road Crumlin (North) Ireland Rheumatoid Factor Standard (RF CAL) Catalogue Number: RF2301 GTIN: 05055273205039 Product Usage: The Randox Rheumatoid Factor Latex-Enhanced Immunorutbidimetric Test Kit is an in vitro diagnostic reagent for the quantitative determination of rheumatoid factors (RF) in human serum. This test kit may be used to facilitate the detection and diagnosis of Rheumatoid Arthritis. RF have also been observed in the serum of patients with systemic lupus eruthematosus, hepatitis. Liver cirrhosis and syp Recall
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According to the U.S. Food and Drug Administration (FDA)
Product
Rheumatoid Factor Standard (RF CAL) Catalogue Number: RF2301 GTIN: 05055273205039 Product Usage: The Randox Rheumatoid Factor Latex-Enhanced Immunorutbidimetric Test Kit is an in vitro diagnostic reagent for the quantitative determination of rheumatoid factors (RF) in human serum. This test kit may be used to facilitate the detection and diagnosis of Rheumatoid Arthritis. RF have also been observed in the serum of patients with systemic lupus eruthematosus, hepatitis. Liver cirrhosis and syp
Brand
Randox Laboratories Ltd. 55 Diamond Road Crumlin (North) Ireland
Lot Codes / Batch Numbers
Batch/Lot # 463479/1325 -1329RF 466715/1325 -1329RF 474059/1339 1343RF 480410/ 1347 1351RF
Products Sold
Batch/Lot # 463479/1325 -1329RF 466715/1325 -1329RF 474059/1339 1343RF 480410/ 1347 1351RF
Randox Laboratories Ltd. 55 Diamond Road Crumlin (North) Ireland is recalling Rheumatoid Factor Standard (RF CAL) Catalogue Number: RF2301 GTIN: 05055273205039 Product Usage: due to The assigned value for Rheumatoid Factor over recovers against the reference material RF serum, 1st British standard from NIBSC. Ref = 64/002. The cal. Based on FDA medical device recall database.
Summary derived from FDA notice
Reason for Recall
As stated by FDA
The assigned value for Rheumatoid Factor over recovers against the reference material RF serum, 1st British standard from NIBSC. Ref = 64/002. The calibrator values have been adjusted to re-align to the reference material.
Recommended Action
Per FDA guidance
1. Review your reagent inventory and replace the value sheet with the new values provided. 2. Review results generated with the affected batches in line with the clinical profile of the patient. 3. Discuss the contents of this notice with your Medical Director. 4. Complete and return the response form 12187-QA to teclhnical.services@randox.com within five working days.
Verify this information on the official source
For complete details and official instructions, check the U.S. Food and Drug Administration (FDA) directly.
View official FDA recall noticePage updated: Jan 10, 2026