The INRatio™ Meter: How it Works

1. A Test Strip is inserted into the meter. The meter automatically performs a self-check to prepare for the test.
2. A drop of fresh whole blood from a fingerstick is applied to the test strip.
3. The blood is drawn into the test area by capillary action where it mixes with reagents that cause coagulation to begin.
4. The meter performs the PT test AND 2 quality control tests (high and low) simultaneously, and determines whether the high and low controls are within preset limits. If they are, strip integrity is verified, and the meter reports the PT test result. If they are not, the meter displays an ERROR message.
5. The test results are displayed in less than 2 minutes as an INR only, or PT seconds and INR, whichever the user prefers.

Learn more about the Test Strip >>