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Two pee test strips, or dipsticks, showing the colored test pad areas, resting on the lid of an open urine test strip container. Usually the instructions supplied with the urinalysis test strip product will suggest dipping the entire dipstick into the urine sample for 1 or 2 seconds and then comparing the results. urinalysis & urine dipstick lab test explained! I hope you learn something new about urine haha. This video is meant to describe the different tests that are performed from a urine dipstick test. Doctors use it to check for signs of common conditions or diseases. When a urinalysis test strip is dipped into a urine sample the chemically impregnated pads react with the urine. Dependent on the result of the chemical reaction certain interpretations about the properties of the urine can be interpreted. Each pad on the urinalysis test strip has a different chemical reagent. Urine test strip is a narrow plastic strip which has several squares of different colors attached to it. Each small square represents a component of the test used to interpret urinalysis. The entire test strip is dipped in the urine sample and color changes in each square are noted. The laboratorian dips the strip into urine, chemical reactions change the colors of the pads within seconds to minutes, and the laboratorian determines the result for each test. A urinalysis is a laboratory test to detect problems with your body that can show signs in your urine. Problems with your lungs, kidneys, urinary tract, skin, and bladder can affect the appearance. this test relies on the breakdown of urinary nitrates to nitrites, which are not found in normal urine. Many gram-negative and some gram-positive bacteria are capable of producing this reaction and a positive test suggests their presence in significant numbers (ie more than 10,000 per ml). Remove strip from urine and tap on absorbent paper or against inside of urine container to remove excess urine wait for manufacturers recommended time to elapse, holding strip in horizontal position to prevent interaction between adjacent test pads.