Case qty. None directions: dip test patch of a fresh strip into urine sample or pass through urine stream, 1-2 seconds only. Blot excess on a clean paper towel or tissue. Results should be compared at 40 seconds after exposure to urine. Low-carb dieters use these strips to monitor ketone output in urine which can be an indicator of diet success. Contact your doctor if you have any questions about the results. 09/08/09
