Doctor insights on:
How Long Does Marijuana Stay In Your Blood
Up to weeks: The stuff also enters fat cells and may stay detectable for a long time especially if you're burning fat. One of the ironies of mandatory drug testing is that drug-users know marijuana stays detectable longer than the far more dangerous illegal drugs, so on friday night people decide to use intoxicants that are far more likely to do harm. Why not be "high on life" for now? ...Read moreGet help from a doctor now ›
One Month: For a heavy user up to one month, rarely longer. Thc really doesn't stay in the blood stream, rather-it is stored in fat and is considered fat soluble. In fact, that is why it can take so long to get out of the body. The thc has to get out of the fat cells. It does depend upon, as one colleague has noted, the frequency of the use as well as the potency of the drug. ...Read moreGet help from a doctor now ›
How long does marijuana stay in a baby's cord blood ? I have a friend who is pregnant and did not find out until 5 months and was smoking at the time
How long does marijuana stay in a babies system that is still in the womb in the poop pee and blood?
Hard to know: Research on babies born after the mother smoked marijuana in pregnancy shows mixed results. Some of jamaican women even show no negative results. http://tinyurl.com/n85vrj3 nonetheless, thc remains in the baby at least as long as it remains in the mother -- depending on frequency of use, this could be months of positive urines since lase use. Thc is stored in placenta and other fat. ...Read moreGet help from a doctor now ›
It depends: How long marijuana is detected in the urine depends strongly on frequency of use. In regular users (more than once a week), the marijuana metabolite builds up to a high level, often on the order of hundreds of nanograms per milliliter (ng/ml), from which it may take weeks to decline back below the threshold of detection. The situation is different for occasional users (no more than once a week). ...Read moreGet help from a doctor now ›
I have to get blood taken for my physical and I am a frequent smoker of both tabacco and marijuana, will this effect the results i smoked about an hour ago
Depends: Drugs are rarely looked for in blood tests - the preferred testing is of urine. Doctors usually do not do drug testing for a routine physical, and if they were, they would get urine either instead of or in addition to blood. It is never the wrong time to quit smoking, especially of tobacco, and you need to consider whether the marijuana is a problem as well. Talk to your doctor. ...Read moreGet help from a doctor now ›
Probably, however...: As my colleague dr. Pappas mentions, marijuana is almost always tested in urine rather than blood, so someone would almost certainly pass a blood test but is more likely to face a urine test. If one does not smoke it regularly and only used a bit 2 weeks ago they would probably pass a urine test, but if they are a regular smoker who only stopped 2 weeks ago they might not pass it. ...Read moreGet help from a doctor now ›
We won't look: Even if you believe our marijuana laws are wise, nobody cares whether there is a little bit of the stuff in blood for transfusion. It is hard enough to get people to donate blood at all without their having to be busted for weed as a result. Thanks for your being willing to donate blood, and don't worry about our "war on drugs" in the privacy of a blood donation. ...Read moreGet help from a doctor now ›
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