Can Cannabis and Hemp Screenings Detect Cannabidiol

CBD or Cannabidiol should not show up on any forms of the drug screening test. But a lot of cannabidiol products contain ample traces of THC or tetrahydrocannabinol, the most active ingredient found in cannabis. If enough tetrahydrocannabinol is present in the body, there is a big chance that it will show up in blood, saliva or hair drug tests. It will depend on the substance’s composition and quality. In this article, we will learn how to avoid positive blood, saliva or hair drug tests and what to look for in cannabidiol products.

What do you mean when you say certain CBD products contain THC or tetrahydrocannabinol?

A lot of CBD or cannabidiol products are not regulated by the United States Food and Drug Administration. Because of this, it is complicated to know what is in them, even if the product is considered legal in your area. Factors like where they came from and how it is harvested might make tetrahydrocannabinol contamination more likely. Certain kinds of CBD are less likely to contain tetrahydrocannabinol than others.

What are the different kinds of cannabidiol?

CBD or cannabidiol comes from marijuana or cannabis, a plant known for its psychoactive effect. The plant contains tons of naturally occurring ingredients such as:




The chemical compositions differ depending on the strain of the plant and their variety. Although hemp and marijuana products are both derived from the cannabis plant, they have a different level of tetrahydrocannabinol or THC concentration.

The THC in cannabis is the psychoactive component and what produces the “high” effect. Products made from hemp is different. They are legally required by the law to contain less than 0.3% of THC content. Because of this, CBD derived from hemp is less likely to contain tetrahydrocannabinol compared to CBD or cannabidiol extracted from marijuana. The variety of plant is not the only factor that affects the presence of CBD. Cannabidiol extracts are usually labelled as one of the following:

Full-spectrum CBD – the extracts contain all the components that occur naturally in the cannabis plant. It means the full-spectrum products include cannabidiol alongside flavonoids, terpenes and THC or tetrahydrocannabinol. A full-spectrum CBD is usually extracted from a subspecies of a marijuana plant.

Full-spectrum marijuana- CBD oil – it contains different amounts of tetrahydrocannabinol or THC.

Full-spectrum hemp-CBD oil – this is a CBD oil that is required by the law to contain less than 0.3% THC or tetrahydrocannabinol.

Not every manufacturer gives out where they extract their full-spectrum came from; that is why it is sometimes difficult to assess how much THC is present in every product. Full-Spectrum cannabidiol is available almost every marijuana shop. The products include oils, edibles, topical creams, serums and tinctures.

Broad-spectrum cannabidiol – like the full-spectrum, it is a product that contains additional components that are found in the marijuana plant. It includes terpenes and other components. But in broad-spectrum CBD’s case, all the tetrahydrocannabinol is removed.

Because of this, broad-spectrum products have a small chance of containing THC compared to their full-spectrum counterpart. These kinds of CBD are less likely available in the market free. It is most often sold in the form of oil.

CBD isolates

It is considered as pure cannabidiol. It does not contain additional components from the cannabis plant where it was extracted. The CBD isolate usually comes from varieties of hemp plants. CBD isolates that came from hemp should not contain any traces of tetrahydrocannabinol or THC.

These kinds of cannabidiol are sometimes sold as crystalline powders or small and solid slabs that can be broken apart and eaten. It is also available in tincture or oil form.

How much tetrahydrocannabinol should be present in the system to register in any drug screening methods?

According to some experts, federal workplace drug screening cutoff values should be established to avoid any possibility that any amount of traces of THC-COOH or THC will trigger a positive test. It means that passing a drug screening does not mean that there are no traces of THC-COOH or THC in your body. Instead, a negative test result indicates that the amount of THC-COOH or THC in your body is way below the cutoff value.

Different screening methods have different cutoff number and detection window

Urine – drug screening using a urine sample is very common, especially in the workplace. When you use this sample, THC needs to be present at a concentration of at least 50 nanograms/ml to produce a positive result (you need to remember that one nanogram is equivalent to one-billionth of a gram).

The detection window differs depending on the frequency of the use and the dose. THC metabolites can be detected in the urine for more or less three to fifteen days after the last use. But for the more massive and regular users, it can lead to a longer detection window, at least 30 days in some cases.

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Blood – this kind of screening is not that common compared to urine screening, to there is a big chance that it will be used in the office setting. It is because the THC is very easily removed from your system. It is only detectable in your blood plasma for five hours at most, though the metabolites are detected up to seven days. In some places where the use of cannabis is legal, the tetrahydrocannabinol concentration is one, two to five nanograms per milliliter. In other areas, zero-tolerance policies when it comes to drugs is not tolerated.

Saliva – Today, saliva screening is not conventional, and the cutoff limits are not established to detect tetrahydrocannabinol in saliva. But according to medical professionals, its cutoff limit value runs at four nanograms per milliliter. Tetrahydrocannabinol is detectable in saliva for 72 hours at most, but it can be detected for a more extended period for heavy users.

Hair – follicle testing is not that very common, and like saliva screening, there are no established cutoff limits for metabolites in the hair as of today. Private screening laboratories set one picogram/ml of tetrahydrocannabinol (you need to remember that one picogram is equivalent to one-trillionth of a gram). The metabolites can be detected in the hair follicles for at least 90 days or three months.

Author Since: Mar 09, 2021

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