Drug Test Results: CBD Flower
After smoking 4 grams of CBD flower in four hours (that’s a lot), participants were drug tested using blood samples, saliva samples, and urine samples. None of the study participants failed their drug test. While this is a very well done study, there are some important nuances that could affect you. Let’s look take a deeper look at the results.
- learn exactly what happens when chronic hemp smokers get drug tested
- learn what to expect from oral fluid tests, blood tests, and urine test results
- find out results from different types of drug tests
If you don’t find an answer in this guide to a question you have, leave us a comment below. We’ll search the published studies to see if an answer exists and get back to you.
Let’s get started.
Published April 8, 2019
After smoking 4 (one-gram joints of hemp containing 0.16% THC) within four hours, individuals were drug tested with three types of highly sensitive drug tests:
Drug Test Results
- None of the drug tests returned a positive result.
- In fact, none of the test results exceeded 1/5 of the minimum level of THC required to cause a positive drug test result. (1)
This research was conducted on “light cannabis.”
- Light cannabis does not exceed 0.2 THC content but CBD content is higher and varies.
- Light cannabis is a similar product to high CBD hemp strains grown in the U.S.
- The cannabis cigarettes tested had a THC level of 0.16% THC and 5.8% CBD content. (2)
12 people were drug tested via:
6 were tested after smoking one cannabis cigarette and 6 were tested after smoking 4 cannabis cigarettes within a 4 hour period. (3)
Sample collections began a half-hour after the last cannabis joint was smoked.
Blood Drug Test Results
The highest THC readings were found in the blood samples but these readings were well below the minimum threshold for a positive result on the drug test. (4)
Urine Drug Test Results
Urine concentrations of THC peaked 8 hours after the last light cannabis joint was smoked. Again, the THC levels were significantly lower than the minimum threshold for a positive drug test result. (5)
Saliva Drug Test Results
The researchers concluded that the oral fluid method of testing had similar results to the blood test method and maybe a reliable method of testing THC/CBD. (6)
Video: Hemp Drug Test Results
Pacifici R, Pichini S, Pellegrini M, et al. THC and CBD concentrations in blood, oral fluid and urine following a single and repeated administration of “light cannabis” [published online ahead of print, 2019 Apr 8]. Clin Chem Lab Med. 2019;/j/cclm.ahead-of-print/cclm-2019-0119/cclm-2019-0119.xml. doi:10.1515/cclm-2019-0119