Roche CoaguChek XS PT/INR System Strips is used with a simple finger prick and the CoaguChek XS meter anyone may monitor coagulation levels, anywhere! The CoaguChek XS meter is a handheld device that tests PT/INR. It provides fast and accurate results making it practical for use within the home, at a physician's office or for emergency transport. Results are given in one minute without the need for venous sampling. The CoaguChek® XS meter gives PT/INR results in one minute. It has a built-in quality control checks every strip automatically. The CoaguChek® XS meter's portability allows individuals to self-test on the go. Small sample required: One drop of capillary blood (10 ul). Order is for 48 strips.