Use of cannabis much prior to administration of Propofol during colonoscopy?

Let's make a hypothetical scenario here. Let's say there's a patient who's an 18-year-old user of cannabis, and this patient is expecting to undergo a colonoscopy sometime within the next few months. The anesthesiologist would, of course, be administering Propofol. And say that he is not a heavy user (of cannabis); say he uses it maybe once a week, or every couple weeks. Here's the question: will the fairly infrequent use of cannabis directly affect the use of Propofol? What would happen if the patient does not notify the doctor about the patient's cannabis use? And the patient would certainly not be high during the procedure; the patient would probably stop using about a week beforehand. But will the fact that the patient has used it in the past have any affect on the administration of Propofol without the doctor's knowledge of it?

[LivingInHope]

This would be a question to ask the patient's anesthesiologist.  Since the colonoscopy is within the next few months, hopefully the patient, who evidently is not so physically dependent as to be on this federally illegal narcotic on a daily basis will choose to stop using marijuana altogether, which would likely make the question of cannibas and Propofol an irrelevant one- one not to be concerned about.