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They urinate in a small container. The container is then sealed and the urine sample is then sent to a laboratory where it is analyzed to detect the presence of drugs.
about two months...
no
A urine sample usually lasts up to 7 days if frozen.
2 weeks
Your urine was presumably stored at approximately 98.6 degrees before you put the sample in the cup. If the temperature is significantly lower, you probably stored the urine somewhere other than your bladder before you provided the sample.
Strep infection is not diagnosed from a urine sample.
This is to preserve the urine sample until its tested.
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6 hours, 12 hours in the refirgerator.
If temperature is being used to verify that the urine came from the correct person the temperature of the sample is an indicator that the urine is/may not be a fresh/valid sample...if the temperature is lower than expected.
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.