CLASS I Device recall · Reported 31 Aug 2016 · FDA Enforcement Report

Alere INRatio PT/INR Test Strips recalled by Alere San Diego

Alere San Diego is recalling Alere INRatio PT/INR Test Strips, distributed nationwide in the US. The recall was initiated on 11 Jul 2016 and the FDA has classified it as Class I.

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Lot, batch or date codesAll Lots All Serial Numbers

Stop using the device if the notice says to, and contact the manufacturer or your healthcare provider for the correction or replacement.

Recall details

Recall number
Z-2361-2016
FDA event ID
74665
Recalling firm
Alere San Diego, San Diego, CA
Classification
Class I
Status
Terminated
Recall initiated
11 Jul 2016
FDA classified
19 Aug 2016
Reported
31 Aug 2016
Type
Voluntary: Firm initiated
Customers notified by
Press Release
Reason category
Temperature Abuse

Timeline

11 Jul 2016Recall initiated by company
19 Aug 2016Classified by FDA+39 days
31 Aug 2016Published in enforcement report+12 days

Companies usually start a recall weeks before the FDA classifies and publishes it; the gap above is that lag.

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.

Foods that need refrigeration and were stored or shipped too warm can grow harmful bacteria without any change in look or smell.

Product as listed by the FDA

Alere INRatio PT/INR Test Strips Model Number: 0100071, 0100139 Product Usage: The INRatio/INRatio2 Test Strips perform a modified version of the one-stage Prothrombin Time test, using a recombinant human thromboplastin reagent. The clot formed in the Prothrombin Time reaction is detected by a change in the electrical impedance of the sample during the coagulation process. The system consists of a monitor and disposable test strips. The monitor measures impedance, heats the test strip to the proper reaction temperature, and provides a user interface. The blood sample is applied to the Test Strip and the clotting reaction occurs on the Test Strip.

Where it was distributed

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, Indonesia, Israel, Italy, Japan, Kazakhstan, Malaysia, Maldives, Netherlands, Russia, Rwanda, Singapore, South Africa, South Korea, Spain, Taiwan, Thailand, Trinidad, Ukraine, Uruguay, and Vietnam.

Nationwide

Questions about this recall

Why was it recalled?

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.

Which lots are affected?

All Lots All Serial Numbers

Where was it sold?

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, Indonesia, Israel, Italy, Japan, Kazakhstan, Malaysia, Maldives, Netherlands, Russia, Rwanda, Singapore, South Africa, South Korea, Spain, Taiwan, Thailand, Trinidad, Ukraine, Uruguay, and Vietnam.

What should I do if I have it?

Stop using the device if the notice says to, and contact the manufacturer or your healthcare provider for the correction or replacement.

What does Class I mean?

Class I is the most serious FDA recall category: there is a reasonable probability that using the product will cause serious health consequences or death.

Read the official FDA notice · Source record retrieved 26 Sep 2026. The FDA describes openFDA data as unvalidated; the official notice takes precedence. This page reports the record and gives no medical advice.

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