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The types of urine specimens commonly used for testing include random urine, first-morning urine, clean-catch midstream urine, and 24-hour urine collection. Each type provides different information based on the timing and collection method.
Spot urine creatinine is a measure of the level of creatinine in a single urine sample collected at any time of the day. It is often used to assess kidney function and as a correction factor when analyzing other urine markers.
No, it is not safe to reuse synthetic urine. Once synthetic urine has been used, it is contaminated and should not be reused. Using contaminated urine may lead to inaccurate results in drug tests and other applications.
Typically, only a few drops of urine are needed for a pregnancy test. The specific amount required may vary depending on the brand and type of test being used. It is important to follow the instructions provided with the test to ensure accurate results.
Urine contains urea, which can indeed be used to neutralize nitric acid during gold refining. However, it is not a recommended method due to impurities and variability in urea concentration in urine, which can affect the refining process. It is safer and more reliable to use commercially available pure urea for this purpose.
in the 1700s people used e.g horses sailing ships wind mills and human muscle power. :) nice
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in the 1700s they used many tools like scissors. in the 1700s they used many tools like scissors.
it was used all the way from the 1700s to present
They used coins and paper money.
Breathing (sometimes breathing Smallpox)
They used indigo.
Yes, and so was salt.
mainly horses and carriages.
they used pows needles and sewers.
They used a toothpick and or a rake.
mortar and pestle, herbs