personification vs animation | advantages of refractometer compared to urinometer
All specific-gravity measurements were read to the nearest 0.001 specific-gravity unit. What the kidneys do is they filter wastes out of the blood, regulate water in the body, and conserve essential compounds in the body including proteins and electrolytes. Select keywords from the list above (click to select, click again to deselect). large volume needed correct for temp. The apparatus shown in Figure 1 will be used. A urine specific gravity measured by refractometer is 1.029, and the temperature of the urine is 14 degrees C. The specific gravity should be reported as: 1.027. Urine A comparison of reagent strips and the refractometer for However, the correlation coefficient decreased as the urine specific gravity increased. Advantages of Reractometer. First, it There are several advantages to using a refractometer instead of a hydrometer, especially in that the refractometer does not suffer from many of the same shortcomings of the hydrometer. Refractometers ii. The analysis can be done in just a few minutes of collecting urine. Home. Gounden D, Newall RG. The buoyancy of the hydrometer needle shows the specific gravity and salinity. 2018 Apr 3;57:e11. National Collegiate Athletic Association Wrestling Rules Committee. Clipboard, Search History, and several other advanced features are temporarily unavailable. The refractometer is a well-known equipment for determining the amount of water in liquids. - R. = comparison of velocity of light in air w/the velocity of light in a solution. Is there a digital hydrometer? - coalitionbrewing.com Unable to load your collection due to an error, Unable to load your delegates due to an error. Can you measure final gravity with a refractometer? Some that may require a more precise measurement where as others may not need such accurate measurements. There are numerous advantages to using a refractometer: Very portable - A hand-held refractometer is easily carried. Refractometer: determines the concentration of the dissolved particles in the specimen by measuring the refractive index. Specific gravity continues to be the most common unit for reporting total solids concentration. 402 Los Olivos, Lima. If you are using a dipstick, make sure you dip the stick briefly and completely. They suggested that the correction for glucose was appropriate but probably academic. It is a part of a routine medical examinations, especially in people who are: It helps diagnose a particular medical conditions such as: It helps in monitoring the patients medical condition, especially those undergoing treatments for the conditions mentioned above. Average hydration status indicated variability among some of the instruments: digital refractometer USG=1.01940.0075, Intraclass correlation coefficients were calculated between methods and trials. Alfredo Mendiola 1907 Of. %d. The PubMed wordmark and PubMed logo are registered trademarks of the U.S. Department of Health and Human Services (HHS). 2001;30(1):16-18. doi: 10.1111/j.1939-165x.2001.tb00250.x. advantages of refractometer compared to urinometer. McCrossin and Roy12 described the overall correlation between refractometry and hydrometry as good. In studies comparing refractometry with reagent strips, several researchers have suggested that reagent strips are an acceptable alternative to refractometry,1315 whereas others have concluded that they are not.12,1619 Although these findings are contradictory, the interclass Pearson correlation coefficients reported in these previous validity studies might not be the most appropriate statistical approach to use when comparing 2 methods of measurement.20,21 Furthermore, none of these authors assessed the reliability of refractometry, hydrometry, or reagent strips. Although some researchers have suggested that glucose15 or protein13 may affect urine specific-gravity measurements with reagent strips, others have concluded that reagent-strip measurements are not affected by the presence of glucose13,18 or protein,18 as discussed previously. The urinometer, a type of hydrometer, was used for measuring the specific gravity of urine. First, what are the characteristics of each method? WebRefractometer measures the urine density on the basis of the index of light refraction. 'Specific gravity' is a function of the number, density and weight of the solute particles present in the urine, and is used as a measure of the concentrating power of the kidney. Hydrometer results were adjusted for temperature by adding or subtracting 0.001 specific-gravity units for each 3C above or below 20C, respectively.22. Comparison of refractometer and biuret methods for total protein measurement in body cavity fluids. Comparison of hydrometry, refractometry, osmometry, and Ames N-Multistix SG in estimation of urinary concentration. Reagent-strip measurements also tended to be greater than refractometer measurements (mean difference = 0.002 0.007) with 95% limits of agreement indicating that reagent-strip values are expected to be 0.012 less than or 0.016 greater than refractometer measurements (Figure (Figure22). 2) Hold the urinometer float by the top and slowly insert it into the cylinder. Does the dipstick meet medical needs for urine specific gravity? Easy to operate - Simply read the instructions that accompany the refractometer. Urinometer The urinometer, a type of hydrometer, was used for measuring the specific gravity of urine. Drops of urine are examined under the microscope to check for the following: Your email address will not be published. The light that is being focused travels through the substance gets absorbed by the. But opting out of some of these cookies may affect your browsing experience. What is specific gravity refractometer urine? What is the difference between a Refractometer and a document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); 2022 LaboratoryInfo.com. Urine with low specific gravity can be a sign of diabetes or kidney problems. Start urinating in the toilet and pass the collection container in the urine stream. It helps assess whether the treatment the patient currently receives is effective. Previous researchers have focused on the validity of hydrometry and reagent strips compared with refractometry, rather than on the reliability of the 3 methods. (Level 2) 13. They reported a correlation of .796 between the reagent strips and refractometry and reported that the reagent strips were not affected by glucose in the urine, but that urine protein may have had an effect. Lil Du Temps Dal Signification, Vincent, Franois, Paul Et Les Autres Streaming Gratuit, Recette Cookeo Thon Tomate, Grafana Tomcat Monitoring, Bouguenais Ville Idale, Oeuvre Qui Dnonce La Pauvret, Lista Soldati Italiani Seconda Guerra Mondiale, . For generating valuable data with a desired accuracy and to quantify concentration of the constituents present in the samples being analyzed. It is a must to observe the proper time of dipping and reading the result as too early or too long could lead to an inaccurate result. Urinary indices of hydration status. In one tertiary care facility, nurses used the refractometer to test urine specific gravity and the reagent strip to test for other substances. This study was designed to provide data to determine if the reagent strip and the refractometer were interchangeable for measuring urine specific gravity in pediatric clients. Medical hand-held refractometers have been used in veterinary practice since their development in the 1960s. Best answer . The https:// ensures that you are connecting to the What are 6 of Charles Dickens classic novels? Therefore, we suggest that refractometry should be the NCAA's only choice for measuring a collegiate wrestler's urine specific gravity during the weight-certification process. Kristin J. Stuempfle, PhD, ATC, contributed to conception and design; acquisition and analysis and interpretation of the data; and drafting, critical revision, and final approval of the article. Refractometers showed reporting bias compared with the Brix solutions used as a reference standard for urine. First, it is a non-invasive and cheap method that can be performed in large populations in everyday-life conditions. This website uses cookies to improve your experience while you navigate through the website. The doctor might require follow-up test to determine the right course of action. Here are some examples of the advantages of a refractometer: Advantages are, only one or two drops of urine is sufficient and temperature correction not necessary. Armstrong LE, Soto JAH, Hacker FT, Jr, Casa DJ, Kavouras SA, Maresh CM. Swirl the urinometer slightly as it is inserted.make sure the instrument floats freely away from the sides of container. In just a few minutes, you will be able to find out the result. Zack JF., Jr Evaluation of a specific gravity test strip. Please let us know if you agree to functional, advertising and performance cookies. In addition to concluding that reagent strips cannot replace refractometry, these researchers also reported that urine glucose and protein had no effect on reagent-strip specific-gravity measurements. Method Trial and Tester Trial Interactions (Mean SD). This is not surprising because determining the urine specific-gravity value using a refractometer is very objective. The dipstick is placed in the urine to check for any abnormalities. Click to see full answer. (5, 6). Main effects were significant for both method and trial (Table (Table3).3). the density of a solution compared with the density of a similar volume of distilled water at a similar temperature. HHS Vulnerability Disclosure, Help advantages of refractometer compared to urinometer. This approach plots the differences between 2 measurement devices against the mean of the measurement devices. False positives (pass refractometer, fail other method) occurred with both hydrometry (47/168, 28%) and reagent strips (25/168, 15%). As mentioned above, they are not as great post fermentation and only a hydrometer will 1. urinometer 2. refractometer 3. reagent strip 4. harmonic oscillation densitometry. Tester 1 and tester 2 were consistent between trials, but tester 3 and tester 4 were not. PMC This may reflect tester subjectivity and the difficulty in determining the density-indicating meniscus. WebThis study was designed to provide data to determine if the reagent strip and the refractometer were interchangeable for measuring urine specific gravity in pediatric Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. Hydrometer measurements were consistently greater than refractometry measurements (mean difference = 0.002 0.003) (Figure (Figure1).1). Urine specific gravity is a measure of the ratio of the density of urine to the density of water. A standard laboratory thermometer measured urine temperature at the time of assessment. What are the advantages of using a refractometer compared to a urinometer?-A refractometer determines the concentration of dissolved particles in a specimen by measuring refractive index. There are a number of cells that can be detected in a routine urine test. 'Specific gravity' is a function of the number, density and It is convenient to use. Web measuring urine osmolality has many advantages (Table 1).
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