Alere INRatio PT/INR Test Strips, Alere INRatio PT/INR System Professional - 0100071 Alere INRatio PT/INR Test Strips, Box of 12 - 0100139 Alere INRatio PT/INR Test Strips, Box of 48 The test strips are packaged in individually pouched test strips in a labeled box with 12 or 48 test strips per box. In vitro diagnostic system that provides a quantitative prothrombin time result, expressed in seconds and as an International normalized ratio (INR).

In certain cases, an INRatio PT/INR Monitor system may provide an INR result that is significantly lower than a result obtained using a reference INR system (laboratory method). This issue can arise if the patient has certain medical conditions. It can also occur if the instructions in the labeling for performing the test are not followed.

An Urgent: Medical Device Correction, dated December 5, 2014, was sent to Healthcare Professionals. The letter identified the affected product and reason for recall. Customers were instructed to: -Ensure they have read and understand the precautions described in the current product labeling (a complete list of product labeling is provided in Appendix A) and the additional precautions in this notice describing medical conditions that may increase the risk of obtaining a (falsely or erroneously) lower than expected INR result. The INRatio PT/INR Monitor system should NOT be used if the patient has any of the medical conditions described. -Verify that the patient has hematocrit within the range of 30% to 55%. If not, immediately transition the patient to an alternate INR monitoring method. -Perform INR verification testing for the patients using a laboratory INR test method. Immediately transition any patient with a significantly discrepant low result on the INRatio PT/INR Monitor system to an alternative INR monitoring method. -If have forwarded product to another customer, please provide a copy of this letter to them. -Please complete and FAX or e-mail the enclosed Reply Form (Appendix B the last page of this notice) within 10 days to confirm your receipt of this notice. Customers can contact Alere INRatio Recall Hotline by phone at 1-877-929-2579, for questions regarding this notification. Additionally, a website has been established providing information and frequently asked questions. www.inr-care.com Please FAX or e-mail the completed Reply Form to: Alere San Diego, Inc. Fax: 1-877-929-2580 E-mail: [email protected].