Can you used an organic, hemp plant based protein powder from Costco?

I would stay away from it, just to be on the safe side, until you can get a clear and straight answer from your Base Hospital Nutritionist.

Since they actually grow hemp close to my house, I can tell you that the THC content in industrial hemp is very low, low enough that you would probably pass out from carbon monoxide poisoning before you would get high off it. The protein powder is the remains of the seeds after the oil is extracted. I don't know how sensitive the tests are today or if the trace amounts found would show up.