CoaguChek®XS system

Product image forCoaguChek®XS system

Point-of-Care PT/INR testing made easier

With the CLIA waived CoaguChek XS system, accuracy and convenience are right at hand. This small, handheld, battery-powered meter is ideal for low- to mid-volume office settings. Plus, you can test and treat in one appointment using the fingerstick test that patients prefer.1 In fact, more INR tests are performed in the United States with the CoaguChek XS meter than all other INR meters combined.2

Designed for comfort, convenience and easy reporting:

Easy to use. The CoaguChek XS meter features two-button operation, automatic power-on and a large, easy-to-read display. Just one drop of blood is applied to the test strip to measure clotting time.

Fast results. The CoaguChek XS displays INR results in about a minute.

The support you need. If you or your patients have questions, live technical support is available by phone.

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Get accurate, consistent results:

Consistent. CoaguChek solutions provide confidence in clinical decision making with 97% correlation to the lab.3

Accurate. CoaguChek technology reduces heparin interference for more accurate results.4


1. Giles T and Roffidal L. Results of the Prothrombin Office-Testing Benefit Evaluation (PROBE). Cardiovascular Reviews and Reports. 2002;23(1):27-33.
2. GHX Market Intelligence. Data on file at Roche Diagnostics.
3. 97% correlation with lab results using Dade Innovin reagent on a Sysmex 560 Analyzer. See CoaguChek XS PT test strip package insert for more information.
4. See CoaguChek XS PT Test package insert for more information.

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I feel like I got my passport back.


The CoaguChek XS system is ready for use anywhere at any time. Patients can use it for self-monitoring at home or while on vacation.


Fast, reliable results


  • Accurate PT/INR results in one minute
  • Built-in quality control checks every strip automatically
  • Lab-comparable accuracy1


Simple fingerstick test


  • Most patients prefer having a small drop of blood (just 8 μL) taken from a fingerstick to having blood drawn from a vein3


Improved patient outcomes


  • Patients who self test have been shown to spend more time in therapeutic range and have less thrombembolic events2
CoaguChek XS system

Detection system


Amperometric (electrochemical) determination of the PT time after activation of the coagulation with human recombinant thromboplastin

  • User interface: Icon-based LCD display; on/off, mem and set buttons


Measuring range


INR: 0.8 - 8.0

%Quick: 120 - 5

Seconds: 9.6 - 96

  1. Kitchen, D.P., Munroe, S., Kitchen, S., Jennings, I., Woods, T.A.L., Walker, I.D. (2008). Results from the first year of an external quality assessment programme for the users of CoaguChek XS and CoaguChek XS Plus for monitoring INRs. British Journal of Haematology, Volume 141 Supplement 1: P188
  2.  Heneghan, et. al (2006). Lancet, 367; 404-411
  3. Woods, K., Douketis, J.D., Schnurr, T., Kinnon, K., Powers, al. (2004). Patient preferences for capillary vs. venous INR determination in an anticoagulation clinic : a randomized controlled trial. Thromb Res 114(3), 161-165.

Technical specifications

Operating conditions

  • Temperature

    + 15° C to + 32° C (59° F to 90° F)

  • Relative humidity

    Less than 85% (without condensation)

  • Maximum altitude

    4,300 m (14,000 ft) 

  • Placement

    Operate the monitor on a level, vibration-free surface or hold it so it is roughly horizontal


  • Measuring range INR

    0.8 -8.0

  • Interface


  • Power

    Battery - Four 1.5v AAA alkali-manganese batteries

    # of tests per set of batteries

    Up to 300 tests or 2 years

  • Size

    138 x 78 x 28 mm

  • Weight

    127 g (without batteries)

  • Memory

    Up to 300 test results (including date and time)

Measuring & Sampling

  • Detection system

    Electrochemical measurement of prothrombin time following activation of blood coagulation with human recombinant thromboplastin

  • User interface

    Simple user interface with icon-based liquid crystal display (LCD), on-off, memory and set button

  • Sample application

    Within 15 seconds of pricking the fingertip, apply the blood to the target area of the test strip—either from the top or side of the test strip. 

Sample material

  • Sample type

    Fresh capillary whole blood or non-anticoagulated venous whole blood

  • Sample size

    ≥ 8 μl

  • Interferences

    Refer to the test-strip package insert

Test strips

  • International Sensitivity Index (ISI)

    Approximately 1.0

  • Sensitivity to heparin

    Testing performed with the following in vitro spiked samples or native blood samples (triglycerides) indicated no significant effect on test results:

    • Heparin concentrations up to 0.8 U/mL
    • Low molecular weight heparins (LMWH) up to 2 IU anti‑factor Xa activity/mL

  • Quality control

    Integrated into the meter and test strips and automatically run for every blood test

  • Stability

    21 months from production (+ 2° C to + 30° C)