T3F, Free T3 Assay, REF/Catalog Number LKF31, Siemens Material Number (SMN) 10381626; an IVD Immunoassay kit for use with the IMMULITE/IMMULITE 1000 Analyzers --- Shipping or unit package: 100, 200, 500 and 600 test kits --- Origin: UK Siemens Healthcare Diagnostics Products Ltd. Llanberis, Gwynedd, LL55 4EL UK. For the quantitative measurement of Free T3 in serum, as an aid in the clinical assessment of thyroid status.

Reason: Siemens Healthcare Diagnostics confirmed customer complaints regarding an increase in the number of euthyroid patients (those with normal function of the thyroid) demonstrating values above the recommended normal range as published in the Instructions For Use for the IMMULITE/IMMULITE 1000 and/or IMMULITE 2000/IMMULITE 2000 XPi for several lots of Free T3 kits. A positive bias in quality control results was also observed, but the values may remain within the established ranges.

Code information: Lot Numbers 353, 354

Distribution pattern: Worldwide Distribution-USA (nationwide) and the countries of Albania, Algeria, Argentina, Australia, Austria, Bangladesh, Belgium, Bulgaria, Bosnia-Herzegovina, Brazil, Belarus, Canary Islands, China, Colombia, Costa Rica, Croatia, Cyprus, Czech Republic, Dominican Republic, Ecuador, Egypt, El Salvador, Estonia, France, Germany, Great Britain, Greece, Guatemala, Honduras, Hungary, Iceland, India, Indonesia, Ireland, Israel, Iran, Italy, Jordan, Republic of South Korea, Kuwait, Kazakhstan, Latvia, Lebanon, Libya, Lithuania, Macedonia, Mexico, Malaysia, Malta, Nepal, Netherlands, Norway, Panama, Peru, Philippines, Pakistan, Paraguay, Poland, Portugal, Qatar, Romania, Russian Federation, Saudi Arabia, Serbia, Singapore, Slovakia, Spain, Sri Lanka, South Africa, Switzerland, Turkey, Thailand, Taiwan, Uruguay, Usbekistan, Venezuela, Vietnam, and United Arab Emirates.