FDA Devices recall · Reported August 31, 2016
INRatio Prothrombin Time (PT) Monitoring System Model Number: 0100007 Product Usage: The INRatio Prothrombin Time Monitoring System uses a modified version of the one-stage PT test. After a drop of blood is applied to the test strip, it is drawn into the test area and mixed with reagents that cause coagulation to begin. The test strip area on the test strip is separated into three channels, each of which contains electrodes for detection of the blood clot. One channel contains the reagents
Alere San Diego is initiating a voluntary recall for the Alere INRatio¿/INRatio¿2 PT/INR Monitoring Systems (Test Strips and Meters). This action is being initiated as a result of…
Alere San Diego, Inc. recalled INRatio Prothrombin Time (PT) Monitoring System Model Number: 0100007 Product Usage:… - a critical-severity action.
INRatio Prothrombin Time (PT) Monitoring System Model Number: 0100007 Product Usage:… was recalled by Alere San Diego, Inc. in August 31, 2016. Reason: Alere San Diego is initiating a voluntary recall for the Alere INRatio¿/INRatio¿2 PT/INR Monitoring Systems (…. Check the official notice for the remedy. Verify recall #Z-2355-2016 with the FDA Devices before acting.
The recall
Alere San Diego, Inc. issued this critical-severity FDA Devices recall-Alere San Diego is initiating a voluntary recall for the Alere INRatio¿/INRatio¿2 PT/INR Monitoring Systems (….
- Critical
- severity level
- Class I
- classification
- August 31, 2016
- reported
Sourced from official FDA Devices enforcement records. Verify recall #Z-2355-2016 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.
Recall Insight
The number of affected units is not disclosed in the agency filing, which is common for drug and food recalls where lot-level tracking supersedes unit counts. Distribution scope (see Distribution below) directly affects the consumer exposure window and determines whether a recall remains regional or escalates into a nationwide advisory.
Within the same product category the archive holds 6 closely related recalls, 6 from FDA Devices - clustering in a narrow category often points to a systemic quality-control or supplier issue rather than a one-off defect. Always verify the recall number against the official agency record before acting.
Medical Devices recalls over time
Where this recall sits in its category - 41,021 medical devices recalls on record
Of 88,244 recalls with an agency hazard classification, 19,068 are high severity, 64,652 moderate, and 4,524 low. A further 16,179 CPSC/NHTSA recalls have no agency class and are excluded from this split. This recall is classified high severity.
Counts reflect market size and reporting activity, not inherent danger, we do not rank products by risk from raw recall volume.
Product description
INRatio Prothrombin Time (PT) Monitoring System Model Number: 0100007 Product Usage: The INRatio Prothrombin Time Monitoring System uses a modified version of the one-stage PT test. After a drop of blood is applied to the test strip, it is drawn into the test area and mixed with reagents that cause coagulation to begin. The test strip area on the test strip is separated into three channels, each of which contains electrodes for detection of the blood clot. One channel contains the reagents to perform the Prothrombin time test on the blood sample. The other two channels contain the reagents. to perfom the Prothrombin time test on the blood sample. The other two channels contain the reagents to run control tests. No external quality control test are required for the INRatio System. The meter monitors the reactions, and calculates the PT and INR for the blood sample, which are reported on the display. If the control results are not within a set range, it indicates a problem with the test and an error message is reported on the display instead of a result.
Reason for recall
Alere San Diego is initiating a voluntary recall for the Alere INRatio¿/INRatio¿2 PT/INR Monitoring Systems (Test Strips and Meters). This action is being initiated as a result of patients who had a therapeutic or near-therapeutic INR with the Alere INRatio¿/INRatio¿2 PT/INR Monitoring System but a significantly higher INR (outside of therapeutic range) when performed by a central laboratory.
Recall Profile
| Attribute | Value |
|---|---|
| Agency | U.S. Food and Drug Administration |
| Severity class | Critical (Class I) |
| Status | Terminated |
| Recall number | Z-2355-2016 |
| Date reported | August 31, 2016 |
| Date initiated | July 11, 2016 |
| Recalling firm | Alere San Diego, Inc. |
| Firm location | San Diego, CA |
| Affected scope | Not disclosed |
| Distribution | Worldwide Distribution - US Nationwide and foreign distribution to the countries of: Argentina, Australia, Azerbaijan, Bangladesh, Belarus, Belgium, Brazil, Brunei Daruss, Canada, Chile, China, Colombia, Egypt, France, Hong Kong, India, In… |
Profile values are sourced directly from the official FDA Devices enforcement record. Source: U.S. Food and Drug Administration.
What to do with this recall
Match your product against the recall record, then act on the agency remedy.
- Check the recall number (Z-2355-2016) and product description against the item you own. Search the archive
- Confirm the current status with FDA Devices before acting, recall details can be updated.
- This is a Class I (high-risk) recall, stop using the product immediately and follow the disposal or return instructions. What to do next
This page summarizes the official FDA Devices record for research and awareness; it is not legal, medical, or safety advice. Verify with the issuing agency before acting.
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Nationwide recalls with similar severity or category timing
Drug and device notices outside this firm and state, matched by severity timing and product category.
Similar severity · nearest report date
Same archive severity grade (Critical), closest by report date among other firms and states.
Similar Medical Devices · nearest report date
Same product category, closest by report date among other firms and states (deduped against the severity set).
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Methodology · Corrections · Archive as of August 2026