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A 47-year-old member asked:

High blood pressure fasting blood test will cannabis show up?

2 doctor answers7 doctors weighed in
Dr. Donald Jacobson
A Verified Doctoranswered
41 years experience
Only if testing for : It. It will only show up in the testing if they're looking for it.
Dr. James Ferguson
Pediatrics 47 years experience
Recent use ?: In most states they require your sign off on a pre-authorization when/if they ever look for drugs. This is part of the self incrimination issue. In most testing they would not look during a routine health care visit as you describe. Since it requires additional personnel time and testing material it is not automatic.

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