CoaguChek® XS system

Coagulation self-testing made easy

Product image forCoaguChek®XS system
The freedom to test anytime, anywhere

The freedom to test anyime, anywhere*


Results in about on minute that can be quickly transferred to a mobile app via Bluetooth® and shared with your doctor.

More contorl over your therapy

More control over your therapy


Spend more time in therapeutic range and less time waiting for appointments. 1-3

Improved care for a better quality of life

Improved care for a better quality of life


INR self-testing can lead to better health and quality of life. 1,2,4-10

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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)