Conclusions: In this convenience sample of a predominantly young athletic population, urinary indices did not differ for subgroups within a large athletic population aside from some difference for race and ethnicity on urine volume. Subjects scored samples as lighter than the investigators, with a higher misclassification of the more concentrated urine samples.
a high urine concentration by scoring urine color (Uc), the athletic population reported a slightly lower accuracy (4–7%) compared to investigators ( p < 0.02). When classifying urine samples for a low vs. When stratifying the data, differences for urine volume were seen for race and ethnicity and for athletic affiliation ( p 0.05). Results: High urine concentration was associated with a low volume and short void duration. Methods: Urine indices were gathered from an athletic population ( n = 189) based on spot-urine samples. (2022).Background: Reference values and confidence intervals for the hydration indices of a large athletic population are currently lacking. Specimen collection procedures: Urology.A prospective study on urine alkalization with an oral regimen consisting of sodium bicarbonate and acetazolamide in patients receiving high-dose methotrexate. The pH of beverages available to the American consumer. Effect of diet composition on acid-base balance in adolescents, young adults and elderly at rest and during exercise. Urinary pH in calcium oxalate stone formers: Does it matter? You can learn more about how we ensure our content is accurate and current by reading our editorial policy. We link primary sources - including studies, scientific references, and statistics - within each article and also list them in the resources section at the bottom of our articles. Medical News Today has strict sourcing guidelines and draws only from peer-reviewed studies, academic research institutions, and medical journals and associations. For a 24-hour sample, they may offer additional instructions, such as fully emptying the bladder at the beginning of the collection day. A person will urinate normally to provide the sample, although the doctor may ask for the first urine of the day or a midstream sample. These are not usually present in the urine and can indicate an underlying medical condition.Ī urine pH test does not cause side effects. Microscopic exam: A laboratory technician will examine a small amount of urine under a microscope to look for particles, such as red blood cells, crystals, or white blood cells.It may also change color if other substances, such as glucose, white blood cells, bilirubin, or proteins are present in the urine. The dipstick will change color to show how acidic or alkaline the urine is. Chemical dipstick test: A dipstick test involves holding a piece of specially treated paper called litmus paper in a urine sample.Physical, visual exam: When a doctor or laboratory technician examines the urine, they will look at its color, whether foreign material such as blood is present in the urine, and whether the urine appears foamy.
This method requires a person to clean their genital area, release a small amount of urine, and collect about 2 ounces (oz) or 60 milliliters (ml) of urine for pH testing.īoth one-time samples and 24-hour urine samples undergo urinalysis. A doctor may ask for a one-time urine sample, or a 24-hour urine test, where a person collects their urine several times over the course of one day.Ī person will collect a one-time urine sample using the “clean-catch” method to prevent bacteria from entering the sample by catching the urine midstream.
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