2 Reactions for generalised tests using a urine test strip.Automated readers of test strips also provide results using units from the International System of Units. Semi-quantitative values are usually reported as: trace, 1+, 2+, 3+ and 4+ although tests can also be estimated as milligrams per decilitre. The time taken for the appearance of the test results on the strip can vary from a few minutes after the test to 30 minutes after immersion of the strip in the urine (depending on the brand of product being used). This type of analysis is very common in the control and monitoring of diabetic patients. The reading of the results is carried out by comparing the pad colours with a colour scale provided by the manufacturer, no additional equipment is needed. There are strips which serve different purposes, such as qualitative strips that only determine if the sample is positive or negative, or there are semi-quantitative ones that in addition to providing a positive or negative reaction also provide an estimation of a quantitative result, in the latter the colour reactions are approximately proportional to the concentration of the substance being tested for in the sample. pH measurement), while the strips with pads allow several determinations simultaneously. Paper strips are often specific to a single reaction (e.g. For the paper strips the reactants are absorbed directly onto the paper. The test strips consist of a ribbon made of plastic or paper of about 5 millimetre wide, plastic strips have pads impregnated with chemicals that react with the compounds present in urine producing a characteristic colour.
The analysis includes testing for the presence of proteins, glucose, ketones, haemoglobin, bilirubin, urobilinogen, acetone, nitrite and leucocytes as well as testing of pH and specific gravity or to test for infection by different pathogens. Routine testing of the urine with multiparameter strips is the first step in the diagnosis of a wide range of diseases. The test can often be read in as little as 60 to 120 seconds after dipping, although certain tests require longer. Urine test strip LeukocytesĪ standard urine test strip may comprise up to 10 different chemical pads or reagents which react (change color) when immersed in, and then removed from, a urine sample. Accurately gain a broader clinical insight into a patient's health.Reliable testing for UTI, diabetes, and kidney disorders10 tests for important markers on a single stripCombined leukocyte/nitrite results for. The Multistix 10 SG reagent strip is the reliable frontline test for detection of a broad range of conditions, from detecting urinary tract infections to diabetes and kidney disorders. Please contact your local Siemens Healthineers organization for further details.The Multistix urine test strip showing the manufacturer’s coloured scale. Due to regulatory reasons their future availability cannot be guaranteed. The products/features (mentioned herein) are not commercially available in all countries. "Urine Dry Reagent Strip ‘Error Rates’ Using Different Reading Methods." Poster presented at Quality in Spotlight meeting in Antwerp (2000). Information retrieved on March 7, 2003.ĥ Tighe P. The nitrite and leukocyte estarase tests for the evaluation of asymptomatic bacteriuria in obstetrics. Intensive Care Med 2001 27:1842-7.ģ Robertson AW, Duff P. Cost effectiveness of urinary dipsticks to screen asymptomatic catheter-associated urinary infections in an intensive care unit. Data on file.Ģ Tissot E, Woronoft-Lemsi M-C, Cornette C, Plesiat P, Jacquet M, Capellier G. 5ġ A third party multi-center study comparing Multistix 10 SG to urine culture. 5 Instrument-read results provide consistency and reliability, sample to sample: In a study of 10,084 samples, the % error (+/- 1 color block difference) among positive samples was reduced from 12.4% when read visually to 2.9% when read on the CLINITEK ® 50 analyzer. 4 Studies have shown that when urinalysis is performed with an instrument, sensitivity is increased and positives are correctly identified and reported. Over 10 million Americans have difficulty discerning color. Removes subjectivity by correctly identifying positives 3īe confident that Multistix 10 SG is a reliable rule-out tool for urinary tract infection (UTI)! Combining the results of leukocyte (WBC) and nitrite is a better predictor of the presence or absence of urinary tract infection, than any one test parameter alone.The cost of urine culture is significantly higher compared to urine strip testing.Only 10-15% of urine cultures are confirmed positive.There were 1,887 urine specimens tested comparing the leukocyte and nitrite results of Multistix 10 SG urinalysis strips to urine culture. The Reliable Choice for Urinary Tract Infection (UTI) Detection at the Frontline A multicenter study was conducted to identify patients with potential UTIs.
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