What causes false positives in marijuana drug testing - Doctor answers

Share
1

1
I don't smoke but my boyfriend smoke marijuana so if I swollow his semen would it show up when I take a drug test for my job?

I don't smoke but my boyfriend smoke marijuana so if I swollow his semen would it show up when I take a drug test for my job?

Good question: My guess is that the level of thc in the semen would probably be very small, if detectable at all. You might be more likely to test positive from inhaling second hand smoke when he smokes pot near you. ...Read more

Dr. Alan Wartenberg
585 Doctors shared insights

Drug Testing (Definition)

It is the process of examining body fluids or tissue for evidence of chemicals taken or not taken. It does not diagnose addiction however this a ...Read more


2

2
Can naprelan (naproxen) or aspirin per day use cause a false positive on a drug test that includes testing for marijuana test?

Can naprelan (naproxen) or aspirin per day use cause a false positive on a drug test that includes testing for marijuana test?

Yes Naprelan (naproxen) can but: Apparently Naproxen (naprelan) can rarely cause a false positive on some marijuana screening tests. If this happens you can ask for it to be confirmed with a more specific test which will show that the positive was actually false.
See http://forums. Webmd. Com/3/sub
stance-abuse-exchange/forum/766/2. ...Read more

See 1 more doctor answer
3

3
I have DDD I smoked marijuana because it helped. My doctor said he is starting drug testing. I quit smoking it. What should I tell him if I test +?

I have DDD I smoked marijuana because it helped. My doctor said he is starting drug testing. I quit smoking it. What should I tell him if I test +?

The truth: If you test positive tell him just what you said above- that it helps but you have stopped because he is now testing. I don't know if medical marijuana is legal in your state but if it is I would ask his permission for you to use it. While not a cure, marijuana can be very helpful for pain and inflammation, is generally safer than drugs for pain and usually allows you to use less of those drugs. ...Read more

5

5
Is it possible to get a false negative for marijuana on a doctors office drug test? At home drug test shows positive

Is it possible to get a false negative for marijuana on a doctors office drug test? At home drug test shows positive

Possible: Any test can give a false positive or false negative result. If you do weed, you know the true state and do not need to test.
For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form.
Practice safe sex, if you have sex. ...Read more

See 1 more doctor answer
8

8
How long will I show up positive for marijuana. I quit on november 6 got a drug test december 12. I'm 5"11 165 lbs please help?

How long will I show up positive for marijuana. I quit on november 6 got a drug test december 12. I'm 5"11 165 lbs please help?

It depends: How long you remain positive for marijuana depends on how frequently you use it. With daily use, thc can be detected in urine for 49-90 days. 5-6 times/week would be detectable for 33-48 days, etc. It can be found in hair follicles for 90 days or longer, period. ...Read more

9

9
If I took a drug test that showed I had a marijuana level of 111 would I be clean in seven days from the day I took the test and tested positive?

If I took a drug test that showed I had a marijuana level of 111 would I be clean in seven days from the day I took the test and tested positive?

No: It depends on how often you use marijuana (thc). If it's only 1 time, your urine test may be positive up to 8 days or so. Urine remains positive for a longer time with frequency of use. For 2-4 times per month, your urine thc could be positive up to 3 weeks. For using 2-3 times/week, this becomes 23-35 days. With daily usage, it's 49-90 days. Hair remains positive for 90 days after using. ...Read more

See 1 more doctor answer
11

11
Could you test positive on a drug test for being around only marijuana smoke?

Could you test positive on a drug test for being around only marijuana smoke?

Yes.: If marijuana smoke is in the air, you're breathing it. And, it is absorbed thru your lungs, even if the joint is not in your mouth. The dose is much higher for the one doing the toking, but often there is enough absorbed in nearby persons in a closed space to test positive. And a positive test can last a long time (up to 4wks depending on exposure). Best idea: step away if others are lighting up. ...Read more

See 1 more doctor answer
12

12
Can Vyvanse (lisdexamfetamine) make a marijuana specific drug test show positive?

No: Vyvanse (lisdexamfetamine) is metabolized to dexto-amphetamine and l-lysine. It may show positive for amphetamine/ methamphetamine on a drug test but it will not test positive for thc (marijuana). ...Read more

See 4 more doctor answers
13

13
My roommates smoke marijuana almost everyday the smell comes through their door, to my room. Will that cause me to fail a drug test?

My roommates smoke marijuana almost everyday the smell comes through their door, to my room. Will that cause me to fail a drug test?

Possibly: Are you getting the effects? If you are getting the effects then very likely you would have a positive test. Even if you do not feel the effects you might fail the test ...Read more

See 1 more doctor answer
14

14
Can secondhand smoke from marijuana cause me to fail a hair follicle drug test?

Can secondhand smoke from marijuana cause me to fail a hair follicle drug test?

Probably not: This isn't the place to debate the wisdom of the cannabis laws. In the very unlikely event that this turns up positive, get a good lawyer and tell them what happened. ...Read more

15

15
If I used marijuana less than a month ago and I'm using a detox drink for a urine drug test and my menstrual cycle is on will my test be positive?

If I used marijuana less than a month ago and I'm using a detox drink for a urine drug test and my menstrual cycle is on will my test be positive?

Maybe: Marijuana stays in your hair follicles for far longer then the kidneys rate of excretion. In other words, your urine test may or may not be positive for marijuana depending on how long your body needs to excrete THC (marijuana) products. Your menstrual period has nothing to do with the rate of kidney excretion. ...Read more

16

16
I take 80mg of omeprazole a day I just had a drug test for work and it came back positive for THC I do not use marihuana why did this happen?

False positive.: Most labs use EMIT, Enzyme Multiplied Immunoassay Technique which is prone to errors and Protonix (pantoprazole) does cause a false positive reading for Marijuana. When you have a urine drug test bring your prescription bottle with you. It could also be technician error. ...Read more

17

17
Can you explain how to pass marijuana drug test?

Can you explain how to pass marijuana drug test?

Stop using: There is no reliable way to beat a drug test. If you stop smoking, the substance will clear from your system. ...Read more

See 2 more doctor answers
18

18
I am 5'6 150lb. Will I pass a marijuana drug test in 10 days.

I am 5'6 150lb. Will I pass a marijuana drug test in 10 days.

Drug testing.: Here is a source of information on approximate detection times for various substances.

http://www. Mayomedicallaboratories. Com/test-info/drug-book/viewall. Html ...Read more

See 1 more doctor answer
19

19
If I smoked marijuana two weeks ago, will I pass a drug test?

That depends: Single use of marijuana should be out of your urine in 1 to 7 days. Regular use of marijuana – should be out of urine in 7 to 100 days. Single use marijuana can be detected 12 to 24 hours in blood. Regular use marijuana can be detected for 2 to 7 days in blood. Marijuana regular use detected in hair for months. Single use might not be picked up in hair. ...Read more

20

20
I am planning to take a drug test next week is their anyway I can flush marijuana out of my system?

No: You cannot flush drugs out of your system faster. Next time, if you know a drug test is coming up, you should make better decisions ahead of time regarding using drugs, even marijuana. If you try to take some agent to dilute or fool the test, it may be detected as part of the drug testing process (e.g. The blue dye that squirt in the toilet). ...Read more

Marijuana (Definition)

Marijuana refers to the various preparations of the Cannabis plant into the psychoactive drug for recreational use ...Read more


Ganja (Definition)

Ganja is a Sanskrit word ...Read more