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Doctor insights on: How Far Back Does An Oral Drug Test Detect Cannabis

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How far back does an oral drug test detect cannabis?

How far back does an oral drug test detect cannabis?

Depends: Since thc (the active ingredient in marijuana) binds to fat, it depends on you much fat you have, how much you use, & how physically active you are. It would not be unusual to test positive for a month. ...Read more

Dr. Alan Wartenberg
574 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


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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 ?

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

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Will you test positive for a drug test if using TOPICAL ONLY cannabis lotion?

Will you test positive for a drug test if using TOPICAL ONLY cannabis lotion?

Thc test: true topical lotions --- studies have not shown it positiv e on urine drug screens-------however the new transderm THC patch will show ...Read more

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I was a heavy daily cannabis smoker for 12 months, i'm also overweight. I have quit 70 days ago. Will i test positive in a urine drug test in a week?

I was a heavy daily cannabis smoker for 12 months, i'm also overweight. I have quit 70 days ago. Will i test positive in a urine drug test in a week?

it is possible: You can purchase your own urine drug test for cannabis for about $20 at any pharmacy and test yourself and see. The heavier the use, the longer people remain positive, and ditto for the heavier you are. ...Read more

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Why do I smoke pot everyday and have a negative drug test for cannabis ?

Results may vary: Consider yourself lucky I guess. The drug tests aren't as accurate as they could be, but I wouldn't keep pushing my luck. It only takes one positive test to really interfere with your life. ...Read more

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How long does it take to get a neg of marihuana in a drug test being a daily smoker for years?

Several months: And that's only if you stop and do not use it ever again. With daily use, urine will stay positive for at least 90 days. Hair will stay positive 90-120 days. ...Read more

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My bf smokes marihuana. If he came inside me and right after i went to take a drug test can his sperm slip out and affect the test?

Marijuana : You have to ingest marijuana yourself for your tests to be positive. You do not ingest marijuana by receiving semen from your boyfriend during intercourse. ...Read more

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I just took a hair drug test. Smoked marihuana daily up until 100 days ago. Hair was taken from armpit which was trimmed to 1-1.5 inches. Will I pass?

Impossible to say: Axillary hair growth rate varies a lot from person to person. In a little over 3 months, you may have grown the hair more than 1 1/2 inches, but it's just as likely you did not. Stay clean and you will eventually pass. ...Read more

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I take Zoloft, lamictal, gabapentin and ambien, I just took an oral drug test for work - can they confirm that I'm on rx if I get any false positives?

I take Zoloft, lamictal, gabapentin and ambien, I just took an oral drug test for work - can they confirm that I'm on rx if I get any false positives?

You can!: Gather together (if you don't still have copies) proof of your Rx's from the Dr(s) and simply present them if necessary. Be as confident as you can and know that for many jobs it would be illegal for anyone to discriminate against you for being treated. You might need to show them evidence - but that's fine! You should be ok. ...Read more

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How far back does a newborns drug test go?

Depends: The type of test will determine the sensitivity and time frame covered.Urine tests often covers the preceding week or so. Meconium tests can cover a month or more. ...Read more

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How far does an umbilical cord drug test go back?

As long as it is in : Blood. , it will also show up in the baby's cord blood. How long that is depends upon the particular substance involved. You will have to look that up online yourself. You should obviously not endangering your child's health by using illicit substances during pregnancy. Please get the help you need to stop doing that unless it happens to be an opiate to which case you need to seek specialized counseling at a clinic that specializes in that. Best wishes. ...Read more

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How far back does a drug test go using the baby's umbilical cord?

How far back does a drug test go using the baby's umbilical cord?

About 1 month: Usually newborn urine or meconium is tested not the umbilical cord. Different drugs stay in the system for different amounts of time and detection will vary. Remember that it is crucial you tell your doctor about any drug use. This is about keeping your baby safe not avoiding getting caught. The doctors can best care for your baby is they know the truth. Be open and honest and keep your baby safe. ...Read more

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How much time does it take a drug test to come back a false positive?

How much time does it take a drug test to come back a false positive?

Dont understand ?: Most tests are "screening" tests, and results from those can be available instantly on some tests - within seconds or minutes - or have to be sent to a lab where it is 1-2 days, depending on their volume, whether it comes on a friday before a 3 day weekend etc. If tests are positive, confirmatory tests are done and may take additional 1-3 days. If those are positive, they are usually NOT false +. ...Read more

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Took a drug test 40 hours after taking the 30 mg vyvanse (lisdexamfetamine). What are the chances that it will comes back clean?

Took a drug test 40 hours after taking the 30 mg vyvanse (lisdexamfetamine). What are the chances that it will comes back clean?

Pharmacology: Vyvanse (lisdexamfetamine) has a half life of approx. 10-14 hours and it takes 4 half-lives for the drug to be eliminated from the body. Vyvanse (lisdexamfetamine) can technically stay in your system for approx. 56 hours. ...Read more

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How to pass a oral drug test if you done meth?

How to pass a oral drug test if you done meth?

You can hope: You can hope that it doesn't show up. More important, it's important that you stop doing "meth". It is treacherous, and can take control of your life and everything that you cherish. The stories about meth users ripping the flesh from their bones before they die are true. Somebody loves you. Do the right thing, if not for your own sake then for theirs. ...Read more

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Marijuana (Definition)

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