Nova Vet Ketone Test Strips are designed for use with the Nova Vet Blood Ketone/Glucose Meter. Nova Vet Ketone Test Strips measure ketone levels in blood with a very small sample, just 0.8 microliters. Results are available in only 10 seconds. One box of ketone strips contains one vial of 25 test strips. Nova's ketone test strips provide an unopened 2-year shelf life from the date of manufacture. The test strip vial can be stored in the Nova Vet meter carrying case so that ketone strips are readily available.