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www.aapc.com/blog/42806-coding-presumptive-drug-testing

Presumptive drug testing services may be performed prior to definitive drug screen testing (80320-80377), when a provider wants to rule out illicit drug uses or to confirm the presence of a particular drug class without identifying individual drugs; or, to distinguish between structural isomers.

answersdrive.com/what-is-a-presumptive-test-for-a-drug-7334132

Water testing for microbiological safety rests on the ability of microbiologists to detect coliform bacteria. The first, or presumptive test, is a screening test to sample water for the presence of coliform organisms. A series of lactose fermentation tubes are inoculated with the water sample.

www.wwltv.com/article/news/health/coronavirus/coronavirus-what-is-a...

Presumptive Positive case of COVID-19: Anyone who has tested positive for the virus, but testing was conducted at the local or state level. Currently, presumptive positive cases must have sample ...

www.experts.com/articles/presumptive-testing-by-jerald-cook

A negative test may be used to rule out a drug or drug intoxication. A positive test is usually indicative of a class or classes of drugs rather than a specific drug. The results, however, are reported as positive for a specific drug. Without confirmatory testing, a positive presumptive test result can easily be misinterpreted.

www.msn.com/en-us/news/us/coronavirus-what-is-a-presumptive-positive-case-of...

Presumptive Positive case of COVID-19: Anyone who has tested positive for the virus, but testing was conducted at the local or state level. Currently, presumptive positive cases must have sample ...

www.labcorp.com/tests/791720/drug-screen-presumptive-four-drug-classes-whole-blood

LabCorp test details for Drug Screen, Presumptive (Four Drug Classes), Whole Blood

www.forwardhealth.wi.gov/WIPortal/Subsystem/KW/Print.aspx?ia=1&p=1&sa=32&s=2&c=...

Providers are required to use procedure codes 80305–80307, G0480–G0483, and G0659 when submitting claims for testing for drugs of abuse. Providers should use procedure codes 80305–80307 when submitting claims for presumptive drug tests. Providers are required to select the appropriate code based on the type of presumptive drug test used.

www.sog.unc.edu/sites/www.sog.unc.edu/files/course_materials/Presumptive and...

(See State Crime Lab Toxicology Procedures for a description of how to perform each test. NCAJ has an additional online training on drug analysis available here. Forensic chemist Dana Way covers presumptive and confirmatory tests used in drug analysis and toxicology.)

www.reviewmed.com/presumptive-vs-confirmatory-drug-testing-which-is-appropriate

This is different than qualitative testing, also known as point of contact or presumptive testing, which identifies drug classifications, such as opiates, muscle relaxants, anti-depressants, etc., but not specific drugs, and is a lot less expensive.

science.howstuffworks.com/forensic-lab-technique2.

Forensic labs are often called in to identify unknown powders, liquids and pills that may be illicit drugs. There are basically two categories of forensic tests used to analyze drugs and other unknown substances: Presumptive tests (such as color tests) give only an indication of which type of substance is present -- but they can't specifically identify the substance.