What device is used for point of care testing (POCT) for PT/INR?

The Hemochron Signature Elite is specifically designed for point of care testing (POCT) of prothrombin time (PT) and international normalized ratio (INR), making it the correct choice for this question. This device allows healthcare professionals to quickly measure blood coagulation parameters, which is essential for managing patients on anticoagulant therapy, such as warfarin. Its design allows for ease of use at the bedside or in an outpatient setting, facilitating timely clinical decisions.

In contrast, the other devices mentioned do not serve this specific function. A hemolytic analyzer is used for analyzing the components of blood typically involved in diagnosing hemolysis but is not designed for PT/INR testing. A portable blood pressure monitor measures blood pressure, which is unrelated to coagulation testing. Lastly, a microsampling device is used for collecting small blood samples but does not perform the actual testing for PT/INR. Thus, the Hemochron Signature Elite is uniquely suited for the POCT needs related to anticoagulation management.