Alere San Diego, Inc. INRatio 2 Monitors - 0200431 Alere INRatio 2 PT/INR Professional Testing System - 0200432 Alere INRatio 2 PT/INR Home Monitoring System - 0200433 Alere INRatio 2 PT/INR Home Monitoring System - 0200457 Alere INRatio 2 Replacement Monitor - 55112 Alere INRatio 2 Replacement Monitor - 55131 Alere INRatio 2 Replacement Monitor - 55128A Alere INRatio 2 PT/INR Professional Monitoring System The test systems contain individually packaged components needed to use the product, such as a monito Recall
Class I: A situation in which there is a reasonable probability that the use of, or exposure to, a violative product will cause serious adverse health consequences or death
Class I recall indicates potential for serious health consequences.
This AI-generated summary is provided for general informational purposes only and is derived from publicly available recall notices. It supplements but does not replace official agency classifications or safety instructions.
Check Your Product
According to the U.S. Food and Drug Administration (FDA)
Product
INRatio 2 Monitors - 0200431 Alere INRatio 2 PT/INR Professional Testing System - 0200432 Alere INRatio 2 PT/INR Home Monitoring System - 0200433 Alere INRatio 2 PT/INR Home Monitoring System - 0200457 Alere INRatio 2 Replacement Monitor - 55112 Alere INRatio 2 Replacement Monitor - 55131 Alere INRatio 2 Replacement Monitor - 55128A Alere INRatio 2 PT/INR Professional Monitoring System The test systems contain individually packaged components needed to use the product, such as a monito
Brand
Alere San Diego, Inc.
Lot Codes / Batch Numbers
All lots of part numbers 0200431, 0200432, 0200433, 0200457, 55112, 55131, and 55128A.
Products Sold
All lots of part numbers 0200431, 0200432, 0200433, 0200457, 55112, 55131, and 55128A.
Alere San Diego, Inc. is recalling INRatio 2 Monitors - 0200431 Alere INRatio 2 PT/INR Professional Testing System - 0200432 Alere IN due to 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 . This is a Class I recall, indicating a high risk of serious health consequences or death. Based on FDA medical device enforcement report.
Summary derived from FDA notice
Reason for Recall
As stated by FDA
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.
Recommended Action
Per FDA guidance
Healthcare providers and patients should stop using the device and contact the manufacturer for further instructions. Report problems to FDA MedWatch.
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 11, 2026