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If you mean would bleach remove heroin from a urine sample the short answer is no heroin is a drug not a bacteria or virus if bleach was added to urine it would definitely not take the heroin out of the urine if it were present.
Both will show in a urine sample if tests are done to look for those drugs.
Spice doesn't show up in urine tests.
Like someone added bleach. It's a dead giveaway.
There are single-sample tests and split-sample tests. If you've got a split-sample test, the second half of the sample goes into the freezer for six months regardless. For single-sample and the other part of a split-sample test, they retain the sample if it tests positive, but if it tests negative they normally dump it.
Some common physical tests of urine include visual inspection for color, clarity, and odor. Additionally, urine can be tested for specific gravity, which measures the concentration of particles in the urine, and pH, which indicates the acidity or alkalinity of the urine.
u pee in a cup the doctor tests the rsults are then told
It is important to perform tests on a control urine sample not containing any chemical substances, a test result on a known quality can assist you in finding the unknown qualities of a urinary sample containing chemical substances. It also can validate any positive results you get with your test sample.
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.
The preservative may interfere with the tests that have been ordered on the urine sample. Also, no preservative of any kind should be added to urine for bacteriological cultures.
If you're talking about 'spiking' someone's sample - that's ILLEGAL. Besides which - the concentration of the contaminant would be so high - the patient would be asked for a second sample.
Contamination from the genital tract. Another sample should be taken.