 [ Symptoms ] what does cannabinoids ur mcnc 40 ngml mean my first urine test showed cannabinoids ur mcnc 40 ngml then 30 days later the results showed cannabinoids ur mcnc 66 ngml my question is have my levels gone up or have they gone down [ Disease ] your cannabinoid levels have gone up 40 ngml means 40 nanograms per milliliter 66 ngml means 66 nanograms per milliliter so there were more cannabinoids in the second urine test than in the first hope that makes sense