INR is measured through a blood test. The blood sample can be taken at a clinic, hospital, or even at home using a portable INR monitor. The test checks the time it takes for blood to clot and compares it to a standard. The result is expressed as a ratio, with a normal range typically between 2.0 and 3.0 for most conditions requiring anticoagulation. However, specific target ranges can vary based on individual health needs.
