Multiple urine test strips

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With the aid of routine examinations early symptoms of the following four groups can be identified.. The urine test strip test for white blood cells detects leukocyte esterase, which is present in azurophilic granules of monocytes and granulocytes neutrophilic , eosinophilic and basophilic. A number of substances interfere with the Ehrlich reaction on the Multistix strip. In other projects Wikimedia Commons. In the range 5 to 9 the strips show colours that change from orange at pH 5, passing through yellow and green to dark blue at pH 9. However, as the protein concentration increases, the colour progresses through various shades of green and finally to blue. The detection of glucose by test strips is based on the enzymatic reaction of glucose oxidase. In many liver diseases the patients often show signs of pathology only at a late stage. Traditionally, ascorbic acid vitamin C has been associated with false-negative reagent strip reactions for blood. Poorly stored samples can yield false negative results as the urobilinogen suffers photo oxidation to urobilin that does not react. Once blood has been detected, the microscopic examination can be used to differentiate between hematuria and hemoglobinuria. Retrieved March 13, The test method consists of immersing the test strip completely in a well mixed sample of urine for a short period of time, then extracting it from the container and supporting the edge of the strip over the mouth of the container to remove excess urine.

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Description: Specific liver diseases and haemolytic disorders able to be identified include liver disease , accompanied by jaundice , cirrhosis , urobilinogenuria and bilirubinuria. Uses authors parameter CS1 maint. Enhancing discoloration of the test pads could improve reproducibility. On experts and expertise. The specific gravity of urine is a measure of the density of the substances dissolved in it and it depends on the number of dissolved particles and their mass. Nitrite-reducing bacteria need to remain in contact with nitrate for long enough to produce detectable amounts first urine produced in the morning or at least with a urine retention of 4 hours. Analysis of the supernatant for blood with a test strip will give a positive if myoglobin is present and a negative if hemoglobin is present. Hematuria produces cloudy red urine, and hemoglobinuria appears as a clear red specimen. This page was last edited on 24 January , at It is possible to use an ammonia sulphate precipitation test in order to distinguish between hemoglobinuria and myoglobinuria. Regulating diet mainly controls urinary pH, although using medication can also control it.
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