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CoaguChek XS 24 PT Test Strips

CoaguChek XS 24 PT Test Strips

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CoaguChek XS Test Strips for Home INR Monitoring

 

You can monitor your blood clotting levels at home with these diagnostic test strips designed for use with the CoaguChek XS device. Each pack contains 24 individual test strips that measure your International Normalised Ratio (INR) and Prothrombin Time (PT) values. These measurements help you and your healthcare provider track how well your anticoagulant medication is working.

The strips use a small blood sample from a fingerprick test to provide accurate results within minutes. This allows you to maintain regular monitoring of your blood clotting function without frequent visits to your GP surgery or anticoagulation clinic. Regular monitoring is essential when you take warfarin or other blood-thinning medications to prevent dangerous complications.

 

How CoaguChek XS Strips Measure Blood Clotting

 

The test strips contain reagents that react with your blood sample to measure how long it takes for your blood to clot. When you apply a small drop of blood to the test strip, the CoaguChek XS device analyses the clotting time and converts this into an INR reading. This process mimics the laboratory tests performed at hospitals and clinics.

Your INR result indicates whether your blood is clotting at the right speed. Values between 2.0 and 3.0 are typically target ranges for most conditions, though your doctor will specify your individual target range. The CoaguChek XS test strips provide laboratory-quality accuracy for home use, giving you confidence in your results.

 

Who Should Use These INR Test Strips

 

These test strips are suitable for you if you take anticoagulant medications and need regular INR monitoring. Your doctor may recommend home testing if you have certain medical conditions or lifestyle factors that make frequent clinic visits challenging. Many patients find home monitoring more convenient and less disruptive to their daily routine.

The strips are appropriate for monitoring if you have:

  • Atrial fibrillation requiring anticoagulation therapy
  • Mechanical heart valves
  • History of blood clots or pulmonary embolism
  • Other conditions requiring long-term warfarin therapy

Your healthcare provider will train you on proper testing technique and help you understand when to contact them about your results. Home monitoring works alongside regular medical supervision, not as a replacement for professional care. You can find additional monitoring supplies in our diabetes monitoring collection.

 

Why Choose Roche CoaguChek XS Technology

 

Roche has developed these test strips using established laboratory methods adapted for home use. The strips undergo rigorous quality control testing to ensure consistent performance across different environmental conditions. Each strip is individually sealed to maintain stability until you use it.

The technology provides results that correlate closely with laboratory venous blood tests, giving you and your healthcare provider confidence in the accuracy of your home monitoring. This reliability is crucial when making decisions about medication dosing adjustments based on your INR results.

 

Storage Requirements and Shelf Life

 

You should store the test strips in their original container at room temperature, away from direct sunlight and moisture. Do not refrigerate the strips or expose them to extreme temperatures, as this can affect their accuracy. Each strip has an expiration date printed on the individual foil packaging.

Check the expiration date before each use and never use expired strips, as they may provide inaccurate results. Once you open the container, use the strips within the timeframe specified in the product information. Proper storage ensures the strips maintain their accuracy throughout their shelf life.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

 

How to Use Your CoaguChek XS Test Strips

You should follow your healthcare provider's specific instructions for testing frequency and technique. Generally, you will insert a test strip into your CoaguChek XS device and wait for the device to prompt you for a blood sample. Use the provided lancet to obtain a small drop of blood from your fingertip, then apply this to the designated area on the test strip.

The device will analyse your sample and display your INR and PT results within approximately one minute. Record your results in your monitoring log and follow your healthcare provider's guidance about when to contact them regarding your readings. Some patients test weekly, while others may need more or less frequent monitoring depending on their individual circumstances.

Important Testing Guidelines

You should perform your test at consistent times of day when possible, as this helps establish reliable patterns in your results. Ensure your hands are clean and warm before testing, as cold hands can affect blood flow and sample quality. Follow the device instructions carefully for applying the blood sample to avoid error messages or inaccurate results.

Your healthcare provider will establish your target INR range and advise you when to contact them about results outside this range. Never adjust your medication dosing based solely on home test results without consulting your healthcare provider first. Keep a record of all your test results to share during medical appointments.

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Understanding Test Strip Limitations and Considerations

Like all diagnostic devices, CoaguChek XS test strips can occasionally produce inaccurate results due to various factors. While serious issues are uncommon, you should be aware of situations that might affect your test accuracy. If you experience any problems with testing or have concerns about your results, you should contact your healthcare provider promptly. Additional health monitoring products are available in our electrical health and diagnostic range.

Most users experience reliable testing without complications, but certain factors can occasionally interfere with accurate readings. These may include insufficient blood sample size, expired test strips, or device malfunction.

Factors that may affect test accuracy include:

  • Inadequate blood sample volume
  • Using expired or improperly stored test strips
  • Testing with cold or poorly circulating hands
  • Device battery issues or technical malfunction
  • Certain medications that interfere with clotting tests
  • Severe anaemia or very high red blood cell counts
  • Recent illness or significant dietary changes
  • Alcohol consumption before testing
  • Dehydration affecting blood consistency
  • Contamination of the test strip or blood sample
  • Incorrect application of blood to the test strip
  • Environmental factors like extreme temperatures

If you experience these or any other testing issues, speak to your doctor or pharmacist right away. For more information about reporting side effects please see the MHRA Yellow Card Scheme.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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