Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Multistix Generic Urine Test Strips

Please be careful if you are using these strips to measure glucose in urine. I use a lot of different urine test strips and these give identical results to the other name brand test strips in everything but glucose. I have tested them against 2 other brands and these definitely test quite a bit lower on glucose. I have notified the manufacturers and they have offered to exchange them for me.