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15y ago

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How long does a urine sample stay good for if being tested for THC?

A urine sample usually lasts up to 7 days if frozen.


How long is a urine sample good for if frozen?

It's not good anymore for testing once cold, it has to be fresh warm urine for the test to work properly.


How long will a sperm sample be viable?

Not long unless kept by doctors.


How long can stored urine be retested for drug screening?

The confirmation sample is frozen, so they can test it as long as they want to keep it in the freezer. Normally it's only six months.


How long can urine be frozen for accurate testing purposes?

Urine can be frozen for accurate testing purposes for up to 6 months.


How long will traces of cocaine stay in a urine sample?

a week


How long can cocaine stay in a urine sample if refrigerated?

How long does molly show up in urrine


How long after you quit smoking will cotinine show up in a urine sample?

3weeks


How long does frozen urine last before it becomes unusable for testing or analysis?

Frozen urine can typically be stored for up to 6 months before it becomes unusable for testing or analysis.


How long does the drug ice by smoking stay in your system and can it be detected by a urine sample.?

72 hours


How long does urine stay fresh if refrigerated it is for a drug and alcohol test?

depends what you mean by fresh. If you mean no bug growth then it also depends on the preservatives. No preservatives, less than 24 hours. with boric acid preservative, maybe a weekend. If you mean the substances tested in the urine. e.g. glucose, bence Jones protein etc, then it depends on what the test is for. The fresher the sample, the more accurate the result


How long can a urine sample be kept for if it is being tested for alcohol?

6 hours, 12 hours in the refirgerator.