About 90 days ago I smoked a very small amount of weed and that was the first and only time. I'm a small person and I want to donate blood in a community blood drive. Will anything show up?
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its out of your system by now, and no they do not test for thc levels.
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Thc is always in your bloodstream, smoking weed will cause a spike, then ur back to normal, don't worry, you can probably give blood as long as you don't have std's
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No