Accuracy of home urine test for pets

Direct from our manufacturer of ThePetCheckup test strips on the subject of false negatives/false positives:

We put every lot of ThePetCheckup strips through a strenuous quality control process that includes a multi-level system of quality testing using special urinalysis controls that show negative, low positive, and high positive results. This testing is specifically designed to ensure that only the highest quality products are released into the market for animal testing.  Each lot of ThePetCheckup has been tested and passed a quality control process specifically meant to ensure that false negatives/positives are not encountered during use.  On top of the intense quality testing process, each individual test is packaged with its own desiccant in order to ensure that the product lasts throughout the entire shelf life and is unaltered when the end user opens the pouch and uses the test.