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If you deliver a diluted sample, they'll flunk you just for the dilution.
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∙ 14y ago
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Can birth control pills give you a false negative?
Hi, Your question is: Can birth control pills give you a false negative? No. Birth control pills can not give you a false negative or a false positive.
Can you take a pregnancy test after it happened?
By "it" if you mean sex, no. Conception can take up to 5-7 days after intercourse. The best time to take a pregnancy test is about 1-2 days before your expected period with your morning urine. Don't drink fluids to make yourself urinate! This will cause your urine to be diluted and can give you a false negative if you are pregnant!
How accurate is a sure sign pregnancy test?
About 98% accurate if positive, less accurate if negative as there are more things that can give you a false negative. The test can be taken too soon after conception, wait until a missed period if you can, taken at the wriong time of day, a morning urine is best, or taken after drinking to much so the hormone is too diluted.
What are beta values?
The probability that a statistical that will give give a false negative error.
Does water effect your urine test?
Certain tests have an indicator the show when the sample has been "diluted", but not every test has this indicator. Also, if ample water has been consumed urine typically turns clear leaving the authority to wonder why you've been drinking so much water.
Drug testing results?
Can trazadone give a false positive urine drug screen for methamphetamine
Do blueberries give off a negative urine test?
No, blueberries shouldn't have an effect on these tests.
What will give a false positive on ETG urine test?
The ETG test is not a reliable test for the presence of alcohol a person consumes. This urine test has been notorious for false positives that occur to incidental exposure to ethanol, and even bacteria.
When one has only 5 hrs to prepare what is the most effective way to achieve a false negative on a urine drug test if you had smoked marijuana within the last 24 hrs?
Go down to your local headshop and buy a bottle of synthetic urine to substitute for the sample you give them and relax and be reassured that you will pass your test (:
Can narcotics give you a false negative pregnancy test?
No. I was wondering the same thing and did research on it. My period is two and a half months late and urine and blood negative. I am sitting in dr. Office right now...trying to figure out what's up. I read if pregnancy hormone is high in system due to twins, the tests could come back negative.
Negative pregnancy test but urinated on it again and it went positive?
This happened to me when I got pregnant with my third child. The first test was negative and the second positive. From what I understand, a pregnancy test can give a false negative but rarely gives a false positive.
Can an expired pregnancy test give a false negative reading Even if it's only 1 year expired?
Yes it can. Any pregnancy test can give a false negative (not picking up on the presence of the hormone hCG (human Chorionic Gonadotropin)) however they will not give a false positive (The hormone will only be there if you are pregnant) An expired pregnancy test will be even less accurate.
