If delivery of the urine specimen to the laboratory within one hour of collection is not possible, it should be refrigerated.
The answer said that various components of urine undergo decomposition in different periods of time. MY question is, if you refrigerate urine, when does pH begin decomposition and become more alkaline?
It is my understanding that after 30 minutes at room temperature, the pH portion of the test is no longer accurate. Let's say you catch the urine and within 5 minutes you refrigerate it. Will that pH be as accurate at 1 hour after collection as it would have been if tested within say, 20 minutes of being collected? How about 2 hours? 3 hours? and so on.
The reason to refrigerate urine after collecting a sample is to avoid bacteria from forming in it. If a sample of urine will be taken to a lab within an hour of collecting it, then it does not need refrigerated.
The most common way to test for PEDs is a urine sample. You can also test PEDs from drawing blood but that isn't as common because it takes more work than collecting a urine sample.
A clean-catch midstream urine sample is typically obtained by cleaning the genital area, then starting to urinate into the toilet before collecting a sample midstream in a clean container. This technique helps reduce the risk of contamination from the surrounding skin and the initial stream of urine.
Alcohol can typically be detected in a urine sample for up to 12-48 hours after consumption, depending on factors such as the amount consumed and individual metabolism.
Random urine sample First morning urine sample Midstream clean-catch urine sample 24-hour urine collection Timed urine sample Postprandial urine sample Suprapubic aspiration specimen Catheterized urine specimen Pediatric urine bag specimen
Strep infection is not diagnosed from a urine sample.
It can be. The first void of the morning is usually the most concentrated, which helps when trying to do pregnancy tests or microalbumin-creatinine ratios.
Collecting a urine specimen from a urine drainage bag is acceptable when it is necessary to obtain a sample for laboratory analysis, and no other options are available, such as a clean catch. However, it should be done with caution to avoid contamination, and the specimen should be collected from the sampling port rather than the bag itself. It is important to ensure the sample is fresh and representative of the patient’s urine output. In general practice, obtaining a sample directly from the patient is preferred when possible.
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A urinalysis test can detect both albumin and sugar in the urine. Albumin is a protein that may indicate kidney damage if found in urine, while sugar in urine can be a sign of diabetes. The test involves collecting a urine sample and analyzing it for the presence of these substances using various techniques such as dipstick testing or laboratory analysis.
Boric acid is used as a preservative in urine sample bottles to prevent the growth of bacteria and preserve the integrity of the sample for testing. It helps to maintain the pH of the urine and keep it stable until it can be analyzed.
It is very common for a person who is menstruating to contaminate a urine sample. Of course, contaminated urine samples are very common in general.