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Will Expired Glucose Strips Read High or Low?

Discreet, On-The-Go, All-In-One Glucose Checks

Many people managing type 2 diabetes use blood glucose monitors that require glucose strips. It's easy to forget to check if these glucose strips have expired, but it's an important step because they do, in fact, go bad. So, what happens when these strips are past their expiration date? Can they still provide accurate readings? Or will expired glucose strips read high or low?

In this article, we'll explore the reasons why expired glucose strips give unreliable readings. Additionally, we'll introduce alternatives to common blood glucose monitors, like the POGO Automatic, which offers a more dependable way to monitor blood sugar levels.

What Happens When Blood Glucose Strips Expire?

First, it's important to realize that expired glucose strips can be problematic and result in inaccurate readings. Understanding the composition and functioning of blood glucose strips is needed to fully understand what happens when they expire.

Blood glucose strips typically contain enzymes that react when exposed to glucose in your blood. This chemical reaction produces an electrical current, measured and used to calculate blood sugar levels.

Several factors can cause blood glucose strips to expire:

  1. Exposure to Air: The enzymes on the strips are oxygen-sensitive. Exposure to air can cause them to degrade over time, reducing their accuracy in measuring blood glucose levels.
  2. Moisture: Moisture in the packaging can damage the chemicals on the strip, resulting in inaccurate readings.
  3. Chemical Reactions: As strips age, chemical reactions between the components can alter their performance, compromising accuracy.

These factors can reduce the accuracy and reliability of glucose strips as they approach their expiration date, making them less effective for managing diabetes.

The Risks of Using Expired Blood Glucose Strips

If you’re still wondering, “Will expired glucose strips read high or low,” or asking yourself if it’s safe to continue using expired glucose strips, it’s important to know that using expired strips can pose significant risks to your health.

Some dangers of relying on expired strips include:

Inaccurate Readings The most obvious risk is inaccurate readings. As enzymes get old, strips will often read low.  However, chemical reactions in strips from some brands might make old strips read high.  It depends on the manufacturer. This potentially results in incorrect medication dosages or treatment decisions.
Health Complications Incorrect medication dosages can lead to dangerous health complications, such as hypoglycemia (low blood sugar) or hyperglycemia (high blood sugar). If not treated properly, these conditions can have serious consequences.
Financial Costs Incorrect readings can result in unnecessary medical expenses such as hospitalization and medication changes. It's not just your health at stake; it's also your wallet.

Using dependable blood glucose monitoring methods is crucial, and it's advisable not to depend on expired strips. If you have expired blood glucose strips, it's essential to dispose of them properly.

There have been instances where individuals faced health issues because of using expired strips. These stories should serve as reminders, emphasizing the critical role accurate monitoring plays in managing diabetes effectively.

The POGO Automatic® Alternative

The POGO Automatic Monitor is exceptional, setting a new standard in blood glucose monitoring. It is the first and only FDA-cleared, One-Step™ automatic blood glucose monitoring system featuring 10-test cartridge technology. And it effectively does away with the need for separate test strips and lancets.

Here's what makes it unique:

  1. One-Step Convenience: With a single action, the POGO Automatic Monitor simplifies the entire blood glucose monitoring process. In just one step, it lances your finger, collects your blood, and gives you a precise blood glucose result in seconds.
  2. Revolutionary 10-Test Cartridge: At the heart of our system lies the innovative 10-test cartridge technology. This cartridge houses all the components required for accurate blood glucose testing. So, say goodbye to searching for separate test strips and lancets; everything you need is integrated into the POGO Automatic Monitor.

The POGO Automatic Monitor redefines blood glucose monitoring, making it more efficient and convenient for people with diabetes.POGO is a reliable system that simplifies blood glucose monitoring, allowing you to test discreetly and get back to living life to the fullest.

Prioritize Your Health with POGO Automatic®

It is never a good idea to use expired glucose strips. Using expired glucose strips for blood sugar monitoring can put you at risk. If you catch yourself frequently debating, “Will expired glucose strips read high or low,” or questioning if you can rely on your current blood glucose monitor, discuss your concerns with your healthcare team.

Discreet, on-the-go, all-in-one glucose testing.

POGO Automatic is the only FDA-cleared blood glucose monitor that lances and collects blood automatically, in one simple step, with its 10-test cartridge technology, eliminating the need to carry separate lancets and test strips. Reach out today to learn more about how you can check your blood without interrupting your day.

 Jaclyn Owens, product director specializing in diabetes management tools

Jaclyn Owens

Jaclyn Owens is a product director specializing in diabetes management tools. She is committed to using technology to empower people with diabetes and help them take control of their health.


All content on this website is for educational purposes only and does not replace the guidance of your healthcare practitioner. Always seek the advice of your physician or other qualified healthcare provider with any questions you may have regarding a medical condition or treatment and before undertaking a new healthcare regimen, and never disregard professional medical advice or delay in seeking it because of something you have read on this website.

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