Normal urine should be completely transparent, if left to stand for some time, you can isolate the sediment in the form of lipids, cell elements, mucus and bacteria.
Urine should be delivered to the laboratory no later than 2 hours after collection(during long-term storage, bacteria can appear in it, and some important elements will begin to disintegrate).
The urine of a healthy person does not contain the Bence-Jones protein, which is represented by light chains of immunoglobulins that are detected as a result of the formation of malignant tumor processes.
The red color can be caused by taking Amidopyrine, Antipyrine, Santonin, if the patient has taken Acetylsalicylic acid(especially in large quantities), then the urine may become pink.
And in doing so, he actually isolated hormones that are still used to help women get pregnant today, though now, they can be synthesized in a lab, and gallons of pee aren't necessary.
As urine, a substance filtered by the kidneys, was considered to have much less information than blood, it had generated little interest as a specimen for use in cancer screening.
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