Ketones are produced when the body breaks down fat for energy. They can be detected in the urine, blood, or breath. Checking for ketones is important for people with diabetes, as it can help them to manage their condition and avoid diabetic ketoacidosis (DKA), a serious complication that can occur when ketone levels are too high.
There are a few different ways to check for ketones. The most common method is to use a urine test strip. These strips are available over-the-counter at most pharmacies. To use a urine test strip, you simply dip the strip into a sample of your urine and then read the results. The strip will change color depending on the concentration of ketones in your urine.