Editing Drug test (section)

===Saliva drug screen / Oral fluid-based drug screen===
[[Saliva]] / oral fluid-based drug tests can generally detect use during the previous few days. It is better at detecting very recent use of a substance. THC may only be detectable for 2–24 hours in most cases. On site drug tests are allowed per the Department of Labor.<ref>{{Cite journal |last1=Macdonald |first1=Scott |last2=Cherpitel |first2=Cheryl J. |last3=Stockwell |first3=Tim |last4=Martin |first4=Gina |last5=Ishiguro |first5=Sonya |last6=Vallance |first6=Kate |last7=Brubacher |first7=Jeff |date=2013-05-06 |title=Concordance of self-reported drug use and saliva drug tests in a sample of emergency department patients |url=http://dx.doi.org/10.3109/14659891.2012.760010 |journal=Journal of Substance Use |volume=19 |issue=1–2 |pages=147–151 |doi=10.3109/14659891.2012.760010 |pmid=25104914 |pmc=4120967 |issn=1465-9891}}</ref>

Detection in saliva tests begins almost immediately upon use of the following substances, and lasts for approximately the following times:

* [[Alcohol (drug)|Alcohol]]: 6-12 h<ref name="ReferenceC">{{Cite web|url=https://www.erowid.org/psychoactives/testing/testing_info1.shtml|archiveurl=https://web.archive.org/web/20100217023841/http://www.erowid.org/psychoactives/testing/testing_info1.shtml|url-status=dead|title=Erowid Drug Testing Vaults : The Basics|archivedate=February 17, 2010|website=www.erowid.org}}</ref>
* [[Marijuana]]: 1-24h

A disadvantage of saliva based drug testing is that it is not approved by FDA or SAMHSA for use with DOT / Federal Mandated Drug Testing.<ref>{{Cite web |title=Drug Testing Resources |url=https://www.samhsa.gov/workplace/drug-testing-resources |access-date=2022-10-21 |website=samhsa.gov |date=April 16, 2014 |language=en |archive-date=October 21, 2022 |archive-url=https://web.archive.org/web/20221021172713/https://www.samhsa.gov/workplace/drug-testing-resources |url-status=live }}</ref> Oral fluid is not considered a bio-hazard unless there is visible blood; however, it should be treated with care.