Table 2.

Interpretation of volunteer hair cannabinoid concentrations under the assumption that hemp oil administration had not been reported.

Volunteer	Interpretation
1	Not consistent with cannabis use due to the absence of THC and the levels of CBD and CBN present. Likely to be the result of using a cannabis based product. This is not a typical result. Our laboratory has not encountered a result with no THC presence, but high CBD and CBN.
2	Suggestive of low level or infrequent use of cannabis. Could also arise from exposure to cannabis.
3	Suggests cannabis use as the metabolite THC-OH was detected. The level of CBN and CBD present suggest possible use of cannabis based product.
5	No evidence of use
6	Suggestive of low level or infrequent use of cannabis. Could also arise from exposure to cannabis.
7	Suggestive of low level or infrequent use of cannabis. Could also arise from exposure to cannabis. Could also be due to the use of a cannabis based product
8	Suggestive of low level or infrequent use of cannabis. Could also arise from exposure to cannabis.
9	Suggestive of low level or infrequent use of cannabis. Could also arise from exposure to cannabis. Could also be due to the use of a cannabis based product
10	Suggestive of low level or infrequent use of cannabis. Could also arise from exposure to cannabis.