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Generally from 21hrs to four days.

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Q: How far back can cotton swab tests detect marijuana?
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Related questions

How far back can a hair follicle test detect marijuana?

all the way


How far back does urine tests detect hydrocodone?

7 days


What is the furthest back a mouth swab can detect marijuana?

12-24 Hours for TCH and 48 for meth and opi's


What frequency of marijuana usage will hair analysis detect?

a hair folocal test can go back up to 20 years


How far back does mouth swab detect marijuana?

The average mouth swab detects use for up to 48 hours.


If your period is 10 days late but 10 urine tests all came back negative is pregnancy still possible?

Yes, because blood tests detect pregnancy earlier than urine tests do.


How far back does a swab test for mushrooms?

Slab tests detect drugs for short period of time 1-3 days to 7-12. But psychoactive substances in the mushrooms, are not commonly tested for in the standard drug tests.


If doctors wanted to examine a mucus sample from your throat could they detect any trace of marijuana that you smoked and if so how far back?

Typically, that kind of test is only used to determine whether Strep is present and they won't bother with the other tests. It's possible that they could test for the presence of THC but if nobody is paying for the test, it won't happen.


How would marijuana show up in someones system if they havent smoked in 40 days will other meds taken interfer?

If THC has shown up, they either smoked it or was around others who smoked it. Other drugs do not make the tests come back positive for marijuana.


How do you get the smell of marijuana back in your weed when it goes?

how do u get the smell of marijuana back in ur weed when it goes


What can you get medical marijuana for?

glaucoma or back pain


Who picked the cotton on the plantation?

Back in the way back days, slaves did. HMMM! I was not a slave & I picked cotton on a Mississippi plantation!